Solve the problem.
-If $\sin \theta = 0.7$, find the value of $\sin \theta + \sin ( \theta + 2 \pi ) + \sin ( \theta + 4 \pi )$.
A) $0.7$
B) $2.1$
C) $2.1 + 6 \pi$
D) $4.1$

Question

Quizplus · Accepted Answer

The sine function is periodic with a period of $2\pi$, so $\sin(\theta + 2\pi) = \sin \theta$ and $\sin(\theta + 4\pi) = \sin \theta$. Therefore, $\sin \theta + \sin(\theta + 2\pi) + \sin(\theta + 4\pi) = 3\sin \theta = 3 \times 0.7 = 2.1$.

Solve the Problem sin⁡θ=0.7\sin \theta = 0.7sinθ=0.7 , Find the Value Of

Solve the Problem $\sin \theta = 0.7$ , Find the Value Of