To verify: The given
Explanation of Solution
Given information:
The trigonometric identity
Formula used:
Conversion rules,
The Pythagorean identity,
Proof:
Consider the function,
The left hand side of equation is,
Recall that
Apply it in the left hand side of the equation.
Recall the Pythagorean identity,
Since, left hand side and right hand side is equal, therefore, the trigonometric identity
To verify the result graphically, construct the graphs of the equations
Step 1. Press
Step 2. Enter the function
Step 3. Enter the function
Step 4: Press the
The result obtained is provided below,
Observe that graph of
Therefore, the identity holds true.
Hence, the trigonometric identity
Chapter 5 Solutions
EBK PRECALCULUS W/LIMITS
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