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Q 86.

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Found in: Page 544

### Precalculus Mathematics for Calculus

Book edition 7th Edition
Author(s) James Stewart, Lothar Redlin, Saleem Watson
Pages 948 pages
ISBN 9781337067508

# Proving IdentitiesVerify the identity

The expression is an identity.

See the step by step solution

An expression

## Step 2. Concept used

For such a question, split the expression into two halves, LHS and RHS. Separate them and make them easier to understand. If the outcomes are the same, it's an identity.

## Step 3. Calculation

Now, simplify RHS of

Multiply and divide by

LHS of the equation is

Both RHS and LHS are equal. Hence it is an identity