In Exercises 1 and 2, use the trigonometric substitution to write the algebraic equation as a trigonometric

Question:

In Exercises 1 and 2, use the trigonometric substitution to write the algebraic equation as a trigonometric equation of , where - π / 2 < Θ < π / 2. Then find sin Θ and cos Θ.
1. √2 = √4 - x2, x = 2 sin Θ
2. 5 √3 = √100 - x2,x = 10 cos Θ