A community for students.
Here's the question you clicked on:
 0 viewing

This Question is Closed

Rohangrr
 one year ago
Best ResponseYou've already chosen the best response.1The value of the trigonometrical expression \[(4\sin2\ 60^o + 3\tan2\ 30^o – 8 \sin45^ocos 45^o) \ is\] @kropot72

kropot72
 one year ago
Best ResponseYou've already chosen the best response.4Just substitute these values: \[\sin ^{2}60=(\frac{\sqrt{3}}{2})^{2}\] \[\tan ^{2}30=(\frac{1}{\sqrt{3}})^{2}\] \[\sin 45=\cos 45=\frac{ \sqrt{2}}{2}\]

kropot72
 one year ago
Best ResponseYou've already chosen the best response.4What part didn't you get? You just need to plug in the values that I gave and simplify.

kropot72
 one year ago
Best ResponseYou've already chosen the best response.4\[(4\times \frac{3}{4})+\frac{3}{3}8(\frac{\sqrt{2}}{2}\times \frac{\sqrt{2}}{2})=?\]

kropot72
 one year ago
Best ResponseYou've already chosen the best response.43 + 1  4 = ? Do you want to know how the exact values for the trig ratios are derived?

Rohangrr
 one year ago
Best ResponseYou've already chosen the best response.1yo if u could do that

Khushal_Shah
 one year ago
Best ResponseYou've already chosen the best response.0@Rohangrr , kropot72 basically gave you the answer, his work is spot on. If you follow each of this work from each post, you'll get to the right answer, which, as he/she said in their last response, is 0

kropot72
 one year ago
Best ResponseYou've already chosen the best response.4dw:1365502988183:dw dw:1365502674259:dw
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.