Subject: Trigonometry

Name: Jason Parks

Who is asking: Student Level: Secondary

Question: Find value. Assume that all angles are in Quadrant 1.

cot(arcsin 3/5)


Hi Jason,

Suppose that arcsin(3/5) = theta, that is theta is the angle whose sine is 3/5. Since the angles are all in the first quadrant you can draw a representative right triangle.

Use the theorem of pythagoras to find the third side of the triangle and then you can read the cotangent of theta off the diagram.

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