Question

Write the trigonometric expression as an algebraic expression.

1.) SIN(ARCSIN X+ARCCOS X) ANSWER: 1 2.) SIN(ARCTAN 2X-ARCCOS X) ANSWER: 2x²-SquareRoot of 1-x²/Square Root of 4x²+1.

Answer 1

1. x⋅x+√(1−x^2)⋅√(1−x^2) and this is = x^2 + 1 - x^2 thus = 1
youve already given it for Q2.
You get the answer by drawing a graph .