A community for students.
Here's the question you clicked on:
← 55 members online
 0 viewing
AonZ
 3 years ago
Let t = tan x/2
write cos^2 (x/2) as 1/ sec^2 (x/2)
and hence show that cos x = 1 t^2 / 1+t^2
AonZ
 3 years ago
Let t = tan x/2 write cos^2 (x/2) as 1/ sec^2 (x/2) and hence show that cos x = 1 t^2 / 1+t^2

This Question is Closed

primeralph
 3 years ago
Best ResponseYou've already chosen the best response.1did this in high school........long time agooooooo.

primeralph
 3 years ago
Best ResponseYou've already chosen the best response.1dw:1370147814899:dw

primeralph
 3 years ago
Best ResponseYou've already chosen the best response.1dw:1370147962686:dw

primeralph
 3 years ago
Best ResponseYou've already chosen the best response.1Thank you. Had a good teacher in high school......even though was probably the only one who understood what he was teaching........

AonZ
 3 years ago
Best ResponseYou've already chosen the best response.0where are you from? im from sydney australia

primeralph
 3 years ago
Best ResponseYou've already chosen the best response.1I'm African, but I live in US.
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.