### Home > CALC > Chapter 1 > Lesson 1.4.4 > Problem 1-189

1-189.

Let .

Find

.Find

and simplify.Substitute

for . Simplify.If

, find. Set

equal to and solve for .Find

.Let

. Solve for. Then switch theand.Remember the

.

1-189.

Let .

Find

.Find

and simplify.Substitute

for . Simplify.If

, find. Set

equal to and solve for .Find

.Let

. Solve for. Then switch theand.Remember the

.