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Trigonometry Examples
Step 1
Step 1.1
Find the point at .
Step 1.1.1
Replace the variable with in the expression.
Step 1.1.2
Simplify the result.
Step 1.1.2.1
Simplify each term.
Step 1.1.2.1.1
The exact value of is .
Step 1.1.2.1.2
The exact value of is .
Step 1.1.2.2
To write as a fraction with a common denominator, multiply by .
Step 1.1.2.3
Combine fractions.
Step 1.1.2.3.1
Combine and .
Step 1.1.2.3.2
Combine the numerators over the common denominator.
Step 1.1.2.4
Simplify the numerator.
Step 1.1.2.4.1
Move to the left of .
Step 1.1.2.4.2
Add and .
Step 1.1.2.5
The exact value of is .
Step 1.1.2.6
The final answer is .
Step 1.2
List the points in a table.
Step 2
The trig function can be graphed using the points.
Step 3