Question

if 0 is less than or equal to t which is less than 2pi solve cos t + 1=2sin^2t
any idea?

Answer 1

Do you have options?

Answer 2

No all on our own

Answer 3

cos(t) + 1 = 2 sin^2 t

substitute , sin^2 t = 1 - cos^2 t
from the identity sin^2 t + cos^2 t = 1

cos(t) + 1 = 2 ( 1 - cos^2 t )
distribute
cos (t) + 1 = 2 - 2 cos^2 t
2 cos^2 (t) + cos (t) + 1 - 2 = 0
2 cos^2 (t) + cos (t) -1 = 0
factor
(2 cos t - 1 ) ( cos t + 1 ) = 0

Answer 4

@SurpriseBreeze i think you forgot to divide by two tho cuz look at number for equation

Answer 5

four**

Answer 6

I just googled it... sorry .-. I like your elephant! :D

Answer 7

@SurpriseBreeze So is your answer right tho? and haha thanks