Find the exact values of s in the given interval that satisfy the given condition.
-$$[ 0,2 \pi ) ; \cos \mathrm { s } = - \frac { \sqrt { 2 } } { 2 }$$
A) $\frac { 5 \pi } { 6 } , \frac { 7 \pi } { 6 }$
B) $\frac { \pi } { 3 } , \frac { 5 \pi } { 3 }$
C) $\frac { \pi } { 4 } , \frac { 7 \pi } { 4 }$
D) $\frac { 3 \pi } { 4 } , \frac { 5 \pi } { 4 }$

Question

Quizplus · Accepted Answer

The cosine function equals $-\frac{\sqrt{2}}{2}$ at angles $\frac{3\pi}{4}$ and $\frac{5\pi}{4}$ within the interval $[0, 2\pi)$, which correspond to the second and third quadrants where cosine is negative.

Find the Exact Values of S in the Given Interval [0,2π);cos⁡s=−22[ 0,2 \pi ) ; \cos \mathrm { s } = - \frac { \sqrt { 2 } } { 2 }[0,2π);coss=−22​​

Find the Exact Values of S in the Given Interval $[ 0,2 \pi ) ; \cos \mathrm { s } = - \frac { \sqrt { 2 } } { 2 }$