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saifoo.khan
 3 years ago
Differentiate: sin(x)*cos(2x)
saifoo.khan
 3 years ago
Differentiate: sin(x)*cos(2x)

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RolyPoly
 3 years ago
Best ResponseYou've already chosen the best response.1\[\frac{d}{dx}sinxcos(2x) = \frac{d}{dx}sinx(12sin^2x)\]Does that help?

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.0Umm. Sorry no. I have to use the chain rule. @RolyPoly

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.0@yummydum : That won't work. :P

RolyPoly
 3 years ago
Best ResponseYou've already chosen the best response.1\[\frac{d}{dx}sinxcos(2x) = cos(2x)\frac{d}{dx}sinx+sinx \frac{d}{dx}cos(2x)\]This?

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.0Pretty late though. @yummydum

yummydum
 3 years ago
Best ResponseYou've already chosen the best response.0uff acha bhai mein chali jaati hoon..khush?

RolyPoly
 3 years ago
Best ResponseYou've already chosen the best response.1You have to use chain rule for the second term lol

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.0Yes! @RolyPoly I got till: \[uv'+vu'\]\[\sin x(2\sin(2x))+ \cos(2x)(\cos x)\]

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.0@yummydum : RUKO! Sath chalte hain. ;)

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.0In the second term? is my working correct? @RolyPoly

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.0Jehan aap farmaish karain. @yummydum

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.0What will the step after that? I'm stuck till there. @RolyPoly

RolyPoly
 3 years ago
Best ResponseYou've already chosen the best response.1sin2x = 2sinxcosx cos2x= 2(cosx)^2 1

RolyPoly
 3 years ago
Best ResponseYou've already chosen the best response.1\[=2\sin x\sin(2x)+ \cos(2x)(\cos x)\]\[=2\sin x(2\sin x \cos x)+ (2cos^2x1)(\cos x)\]

RolyPoly
 3 years ago
Best ResponseYou've already chosen the best response.1For the first term, you'll get 4(sinx)^2 cosx (sinx)^2 = 1(cosx)^2

RolyPoly
 3 years ago
Best ResponseYou've already chosen the best response.1Then you can express it in terms of cosx, if that's what you want.

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.0Ohhh. Right. Thanks @RolyPoly and @technofable

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.0idk what does that mean.. @yummydum Dubai chaltay hain. =D

yummydum
 3 years ago
Best ResponseYou've already chosen the best response.0nahi yaar bus pakistan lejao phir tum free

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.0Haha. Done. Kab chalna hai? @yummydum

yummydum
 3 years ago
Best ResponseYou've already chosen the best response.0bus $2,000 mujhe de do baki sub khair hai, mein khud khayal kar loongi ...free biryani as a compliment ;)

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.0Lmao. $2000 ki tou main zindagi bhar ki biryani kha sakta hoon. :P @yummydum

yummydum
 3 years ago
Best ResponseYou've already chosen the best response.0$2000 main mein pakistan jaa sakti hoon aur shopping bhi poori....us mein se agar bacha tou tumhe biryani khiladoon gi :P

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.0No thank you. Tumhari tokri main hole hoga, but Allah ka shukr mairi tokri main nahi hai.

yummydum
 3 years ago
Best ResponseYou've already chosen the best response.0haha..chalo jao tum dubai chale jao..uri ko saath le jana :P

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.0Lmao. Tum bhi chalo naa.

yummydum
 3 years ago
Best ResponseYou've already chosen the best response.0mein tumhari kya lagti? :P

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.0Uri mairi kia lagti?

yummydum
 3 years ago
Best ResponseYou've already chosen the best response.0mein kya jaanoon? :P i dont go into private files

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.0Hahaha. Aisa kabhi ho sakta hai k koi larki kabhi private files main na jaye?!

yummydum
 3 years ago
Best ResponseYou've already chosen the best response.0i respect private/personal space

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.0Oh please. No girl is like that. I can list million of examples.

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.0And since you belong to the same race, you can't be one. =D

yummydum
 3 years ago
Best ResponseYou've already chosen the best response.0exactly why i tell you im different...sunnay ko taiyaar nahi ho, i know, but still its true :P

yummydum
 3 years ago
Best ResponseYou've already chosen the best response.0to be a girl is not a race..its a species :P

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.0OMG! EVERY OTHER girl EVERY OTHER says that she's not like "other girls" . Lol And you're saying the same thing!

yummydum
 3 years ago
Best ResponseYou've already chosen the best response.0im not "like other girls"...im just not like girls at all :P

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.0Wait! You're not like girls? Then? Are you like boys? lmao.

yummydum
 3 years ago
Best ResponseYou've already chosen the best response.0acha ji mujhay kaam kerna hai, kisi aur ko dhoondo yeh sab bak bak kernay k liye :P

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.0Haan haan. "larkon walay" kaam karnay hongay. :P Jao bhai. Kaam karo.

yummydum
 3 years ago
Best ResponseYou've already chosen the best response.0if school work is "larkon walay kaam" then yes :P

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.0Bhahiyon ki tarhan speed main kaam kia hai bhai apnay. Hats off.

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.0Haan waisay bhi larkiyan konsa parti hain.. Unhain ultay seedhay kaamon say fursay milaygi tou parhnay ka sochainge. :P

yummydum
 3 years ago
Best ResponseYou've already chosen the best response.0uff itni nafrat lol :P

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.0Lol. Not nafrat. Facts. Mairi konsa larkiyon say koi dushmani hai? ;D

yummydum
 3 years ago
Best ResponseYou've already chosen the best response.0abhi nahi hai..jab shaadi ho jaegi tou phir poochna khud say k ab kuch nafrat hai ya nahi ;P

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.0Nahi nahi, InshAllah aisa kuch nahi hoga. "She and I will live happily ever after <3". Lagta hai tumhain bara experience hai. 23 shadiyan kar chuki ho kia?

yummydum
 3 years ago
Best ResponseYou've already chosen the best response.0good to hear tum mein insaaniat hai :P

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.0Alhamdulliah, achi wali hai. Tumhara husband jald suicide kar laiga. Tension na lo. :p

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.0Haha. Aisa usko baar baar bologi tou aur jaldi kar laiga. ;D

yummydum
 3 years ago
Best ResponseYou've already chosen the best response.0dont worry tumhari wali mere wale se pehli khudkushi kerlaigi :P

yummydum
 3 years ago
Best ResponseYou've already chosen the best response.0ye shaadi hui nahi k time for funeral :P

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.0Nah. Mairay sath itni khushi hogi k usko suicide ki zaroorat he nahi paregi.

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.0Wait! Are you even going to get married? I doubt it.

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.0MashAllah MashAllah. ;D

yummydum
 3 years ago
Best ResponseYou've already chosen the best response.0abhi nahi for sure :P ...ill wait till im in my 20's...kaafi time para hai :D

yummydum
 3 years ago
Best ResponseYou've already chosen the best response.0tumhara to lag raha hai kal shaadi hai :P

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.05~ saal tou hain. Tayyari start kardo! I wish. Ho jaye tou bohat he acha hai. ;D

yummydum
 3 years ago
Best ResponseYou've already chosen the best response.0why so ready to get married? :P

yummydum
 3 years ago
Best ResponseYou've already chosen the best response.0aur ji nahi abhi kuch 67 saat hein mere paas :)

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.0Why shouldn't i be? aagay ka time kisne daikha hai? Hum rahain na rahain. ;D If you know what i mean.. Haha, haan haan.. pooray 20 saal he karlo. :p

yummydum
 3 years ago
Best ResponseYou've already chosen the best response.0no i dont know what you mean...?

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.0Like kia pta after 56 years you are alive or not. Phehlay karo, baad main karo karni tou hai he na. Tou for safety precautions, phehlay he karlo. Time bachao. :D

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.0Ikr. Sahi like always. Ab nazar na lagao.

yummydum
 3 years ago
Best ResponseYou've already chosen the best response.0nazar bhoolo ab thappar pare ga :P

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.0I would love to get a thappar. ;D

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.0Why not? Thappar he tou hai.

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.0But wait! Don't even dare to touch me. Mujhay koi deadly disease nahi lagwani.

yummydum
 3 years ago
Best ResponseYou've already chosen the best response.0zor ka parta hai, soch lo? ...khair get used to it..jo aegi wo khud bohot mare gi :P

yummydum
 3 years ago
Best ResponseYou've already chosen the best response.0mujhay koi zarurat nahi hai tumse disease lene ki so dont worry...tumhari jo aegi (agar aegi :P) wo khud mera kaam poora kerday gi

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.0Haan haan. No worries. Bohat zoor zoor walay khaye hain.. Aur tumhara tou simple hai.. Haha. Disease mujhay lagay gi TUM say. InshAllah ayegi. And aisa koi kaam pura nahi karnay wali wo.

yummydum
 3 years ago
Best ResponseYou've already chosen the best response.0uff..chalo ro nahi :P ...i have to go..tum jao usse dhoodo ;P

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.0Haha. I'm going too. Nite. :')
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