Find the exact value of sin (-0) when cos (-0) = 3/5 and tan 0< 0

  sin(θ) = -4/5

Step-by-step explanation:

tan(θ) < 0 means the sine and cosine have opposite signs. The relation between sine and cosine is ...

  sin(θ) = ±√(1 -cos(θ)²) = ±√(1 -(9/25)) = ±√(16/25)

We want the negative square root, since the cosine is positive:

  sin(θ) = -4/5

11

step-by-step explanation:

32.50-7.50=25

225/25=11