Enter a problem...
Trigonometry Examples
Step 1
Rewrite the equation as .
Step 2
Multiply both sides of the equation by .
Step 3
Step 3.1
Simplify the left side.
Step 3.1.1
Cancel the common factor of .
Step 3.1.1.1
Cancel the common factor.
Step 3.1.1.2
Rewrite the expression.
Step 3.2
Simplify the right side.
Step 3.2.1
Simplify .
Step 3.2.1.1
The exact value of is .
Step 3.2.1.1.1
Split into two angles where the values of the six trigonometric functions are known.
Step 3.2.1.1.2
Apply the sum of angles identity.
Step 3.2.1.1.3
The exact value of is .
Step 3.2.1.1.4
The exact value of is .
Step 3.2.1.1.5
The exact value of is .
Step 3.2.1.1.6
The exact value of is .
Step 3.2.1.1.7
Simplify .
Step 3.2.1.1.7.1
Simplify each term.
Step 3.2.1.1.7.1.1
Multiply .
Step 3.2.1.1.7.1.1.1
Multiply by .
Step 3.2.1.1.7.1.1.2
Multiply by .
Step 3.2.1.1.7.1.2
Multiply .
Step 3.2.1.1.7.1.2.1
Multiply by .
Step 3.2.1.1.7.1.2.2
Combine using the product rule for radicals.
Step 3.2.1.1.7.1.2.3
Multiply by .
Step 3.2.1.1.7.1.2.4
Multiply by .
Step 3.2.1.1.7.2
Combine the numerators over the common denominator.
Step 3.2.1.2
Cancel the common factor of .
Step 3.2.1.2.1
Factor out of .
Step 3.2.1.2.2
Factor out of .
Step 3.2.1.2.3
Cancel the common factor.
Step 3.2.1.2.4
Rewrite the expression.
Step 3.2.1.3
Combine and .
Step 4
The result can be shown in multiple forms.
Exact Form:
Decimal Form: