Question

What does `2sin(arctan(6))-3tan(arcsin(4))` equal?

Answer 1

As sine value cannot exceed 1, arcsin(4) is invalid.

Explanation:

a = arcsin 4 is the angle(s) whose sine is 4.

Here sin a = 4.> 1.

But `|sin a| <=1` and cannot exceed 1...