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Please select the best answer from the choices provided

Please select the best answer from the choices provided-example-1

1 Answer

5 votes

Answer:


x=(5\pi)/(4)

Explanation:

We want to solve;


\cscx=-√(2) in the 3rd quadrant

Recall that;


\sin x=(1)/(\csc x)

We use the reciprocal ratio to get;


\sin x=-(√(2))/(2)

In the third quadrant the solution is


x=\pi+\sin^(-1)((√(2) )/(2) )


x=\pi+(\pi)/(4)


x=(5\pi)/(4)

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