Question

Can anyone can help me here...functions of an angle

Answer 1

Verify the formulas for \[\sin 2\theta, \cos 2\theta, \tan 2\theta, \cot 2\theta \]

Answer 2

by setting theta = 30 degrees.

Answer 3

@perl

Answer 4

you can use sin( 2x) = 2 sin x cos x identity

Answer 5

can you make an example

Answer 6

i didnt know the setting theta = 30 degrees

Answer 7

sin(2 * 30) = 2 sin 30 cos 30

Answer 8

can you work for sin2 theta and i will do the rest

Answer 9

do you agree with that

Answer 10

sin (2*30) = 2 sin 30 * cos 30
= 2 (1/2) * sqrt(3)/2

Answer 11

@perl is this only what we need?

Answer 12

the directions are confusing, what formula are you verifying

Answer 13

Verify the formulas for
sin2θ,cos2θ,tan2θ,cot2θ

what formulas?

Answer 14

Verify the formulas for sin2t,cos(2t) , tan(2t) , cot(2t)
what formulas ?

Answer 15

@perl so we only substitute the 30degrees...and thats the answer?

Answer 16

sorry i dont understand the directions
can you upload a picture of it, perhaps