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anonymous
 5 years ago
Please help me to prove Sin^2 Cos^2 =1 .....
anonymous
 5 years ago
Please help me to prove Sin^2 Cos^2 =1 .....

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Sin^2(x)Cos^2(x) does not equal one.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0\[ \sin ^{2}  \cos ^{2} =1 \] Please Prove this....

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0\[\sin ^2(x)\cos^2(x)\neq1\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0But I ve got this from a web site.... Here's the address.... Please go there and see whats wrong with it... .... http://www.cramster.com/practiceproblemsp2500000391670cpi00.aspx

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0In the Practice3 Question set.... number 4

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0\[\sin ^2(x)+\cos^2(x)=1\]\[\sin ^2(x)\cos^2(x)=\cos(2x)\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Oh.... Friutless can you please explain this farther......

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Your reply for the Question I 've asked.....

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok well this can be proved for sin(x)^2 + cos(x)^2 = 1 because this identity is true. you want to prove this? THE IDENTITY sin(x)^2  cos(x)^2 = 1 IS NOT TRUE. DON'T THINK ABOUT WHAT THE WEBSITE SAYS. IT IS NOT TRUE. PERIOD. what would you like help proving?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0It is asking which one from the choices is correct. It is obviously not D.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0(i) is the correct answer.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Ok prove this one then... \[\sin ^{8}A\cos ^{8}A = (\sin ^{2}A\cos ^{2}A) (1 2 \sin ^{2}A \cos ^{2}A)\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0apply the FOIL method to the right side (expand it) \[\cos^2(A)+\sin^2(A)+2 \cos^4(A) \sin^2(A)2 Cos^2(A) Sin^4(A)\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Replace the first two functions with an identity, and factor the rest.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Hmmmm.... friutless in which grade you're studying... ?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Really.... then I think you have done something similar to the syllbus of London A/L isn't you?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I am asking this from you because I am a student who has just started doing A/L s in Sri Lanka (somewhat similar to London A/L ). so I don't know the FOIL method..... So I can't understand you're reply.....

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Given (xa)(yb), applying FOIL yeilds xyxbay+ab

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Do the same on the trigonometric expressions

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0wow... I've got the right teacher here... thank you....

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0did you get the left side from this method?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0\[Sin ^{8}A\cos ^{8}A=( \sin ^{2}A\cos ^{2}A)(\sin ^{6}A+\cos ^{6}A)+\sin ^{2}Acos ^{6}A\cos ^{2}Asin ^{6}A\] Here's what I've done....... but I've stucked in it please try this also....
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