Question

simplify - cos(π−θ)+sin(π/2 +θ)

Answer 1

cos(theta)+cos(theta)=2cos(theta)

Answer 2

\[-\cos(\pi-\theta)=\cos \theta\]

Answer 3

Also
\[\sin(\frac{\pi}{2} +\theta)=\cos \theta\]

Answer 4

so the answer would be zero?

Answer 5

Depends on what theta is

Answer 6

no number to it

Answer 7

The answer is 2cos(theta)
Did you substitute the values in?

Answer 8

is there supposed to be a neg sign in front of the cos?
"simplify -cos(pi-A)"

Answer 9

i got it thank you

Answer 10

can you help me with this one

Answer 11

4sin6α/cos^2 3α−sin^2 3α