Choose the correct answer
The value of is
We need to find the value of:
Let us simplify the trigonometric function.
We can write as:
Since, lies on IV Quadrant and cosine is positive in IV Quadrant.
And since, lies on IV Quadrant and sine is negative in IV Quadrant.
Using property of inverse trigonometry,
sin-1(sin A) = A and cos-1(cos A) = A