A community for students.
Here's the question you clicked on:
 0 viewing
RonnyDeKoning
 2 years ago
Geomerty
RonnyDeKoning
 2 years ago
Geomerty

This Question is Closed

RonnyDeKoning
 2 years ago
Best ResponseYou've already chosen the best response.0dw:1353250334560:dw

rizwan_uet
 2 years ago
Best ResponseYou've already chosen the best response.0dw:1353251965656:dw

RonnyDeKoning
 2 years ago
Best ResponseYou've already chosen the best response.0Sin 7,5° * sin 37,5 ° * sin 52,5° * sin 82,5°

RonnyDeKoning
 2 years ago
Best ResponseYou've already chosen the best response.0That is the point, you may not.

gohangoku58
 2 years ago
Best ResponseYou've already chosen the best response.1sin (90x)=cos x, sin 2a = 2 sin a cos a Sin 7,5° * sin 37,5 ° * sin 52,5° * sin 82,5° = 1/4(2sin 7.5 cos 7.5 * 2 sin37.5 cos 37.t ) = 1/4(sin 15 sin 75) =1/8(2sin 15 cos 15) =1/8(sin 30) =1/16

RonnyDeKoning
 2 years ago
Best ResponseYou've already chosen the best response.0Why do you use 1/4?

gohangoku58
 2 years ago
Best ResponseYou've already chosen the best response.1coz i need 2 in 2sin a cos a twice so i multiply and divide by 4

RonnyDeKoning
 2 years ago
Best ResponseYou've already chosen the best response.0How do oyu get to sin 15? and sin 75?

gohangoku58
 2 years ago
Best ResponseYou've already chosen the best response.1sin 52.5 = sin(9037.5) = cos 37.5 sin 82.5 = sin(9087.5) = cos 7.5 2 sin 7.5 cos 7.5 = sin 15 same for sin 75
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.