Question 129

The expression $$1- \frac{cos^2A}{1- sin A}$$

Solution

we need to find value of $$1-\frac{cos^2A}{1- sin A}$$

We know that 1 = $$sin^2 \theta + cos ^2 \theta$$

Using this we can say $$1+\frac{cos^2A}{1- sin A}$$ = 1 - $$\frac{1- sin^2 A}{1-sin A}$$

= 1 - 1 - sinA

= - sin A

Create a FREE account and get: