SAT® Subject Test in Math 1 & 2

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Moderate

Solving Trig Equations

SATSTM-JKBLUN

Which one of the following is not a solution to the equation $\text{sin x}+\sqrt{2}=\text{-sin x}$ ?

A

$\cfrac{5\pi}{4}$

B

$\cfrac{7\pi}{4}$

C

$\cfrac{13\pi}{4}$

D

$-\cfrac{\pi}{4}$

E

$\cfrac{3\pi}{4}$