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Trigonometry Examples
Step 1
Use the Binomial Theorem.
Step 2
Step 2.1
Simplify each term.
Step 2.1.1
Rewrite as .
Step 2.1.1.1
Use to rewrite as .
Step 2.1.1.2
Apply the power rule and multiply exponents, .
Step 2.1.1.3
Combine and .
Step 2.1.1.4
Cancel the common factor of and .
Step 2.1.1.4.1
Factor out of .
Step 2.1.1.4.2
Cancel the common factors.
Step 2.1.1.4.2.1
Factor out of .
Step 2.1.1.4.2.2
Cancel the common factor.
Step 2.1.1.4.2.3
Rewrite the expression.
Step 2.1.1.4.2.4
Divide by .
Step 2.1.2
Raise to the power of .
Step 2.1.3
Rewrite as .
Step 2.1.4
Raise to the power of .
Step 2.1.5
Rewrite as .
Step 2.1.5.1
Factor out of .
Step 2.1.5.2
Rewrite as .
Step 2.1.6
Pull terms out from under the radical.
Step 2.1.7
Multiply by .
Step 2.1.8
Multiply by .
Step 2.1.9
Rewrite as .
Step 2.1.9.1
Use to rewrite as .
Step 2.1.9.2
Apply the power rule and multiply exponents, .
Step 2.1.9.3
Combine and .
Step 2.1.9.4
Cancel the common factor of and .
Step 2.1.9.4.1
Factor out of .
Step 2.1.9.4.2
Cancel the common factors.
Step 2.1.9.4.2.1
Factor out of .
Step 2.1.9.4.2.2
Cancel the common factor.
Step 2.1.9.4.2.3
Rewrite the expression.
Step 2.1.9.4.2.4
Divide by .
Step 2.1.10
Raise to the power of .
Step 2.1.11
Multiply by .
Step 2.1.12
Apply the product rule to .
Step 2.1.13
Raise to the power of .
Step 2.1.14
Multiply by .
Step 2.1.15
Rewrite as .
Step 2.1.16
Multiply by .
Step 2.1.17
Rewrite as .
Step 2.1.18
Raise to the power of .
Step 2.1.19
Rewrite as .
Step 2.1.19.1
Factor out of .
Step 2.1.19.2
Rewrite as .
Step 2.1.20
Pull terms out from under the radical.
Step 2.1.21
Multiply by .
Step 2.1.22
Apply the product rule to .
Step 2.1.23
Raise to the power of .
Step 2.1.24
Factor out .
Step 2.1.25
Rewrite as .
Step 2.1.26
Rewrite as .
Step 2.1.27
Multiply by .
Step 2.1.28
Multiply by .
Step 2.1.29
Rewrite as .
Step 2.1.29.1
Use to rewrite as .
Step 2.1.29.2
Apply the power rule and multiply exponents, .
Step 2.1.29.3
Combine and .
Step 2.1.29.4
Cancel the common factor of .
Step 2.1.29.4.1
Cancel the common factor.
Step 2.1.29.4.2
Rewrite the expression.
Step 2.1.29.5
Evaluate the exponent.
Step 2.1.30
Multiply by .
Step 2.1.31
Apply the product rule to .
Step 2.1.32
Raise to the power of .
Step 2.1.33
Multiply by .
Step 2.1.34
Rewrite as .
Step 2.1.34.1
Rewrite as .
Step 2.1.34.2
Rewrite as .
Step 2.1.34.3
Raise to the power of .
Step 2.1.35
Multiply by .
Step 2.1.36
Apply the product rule to .
Step 2.1.37
Raise to the power of .
Step 2.1.38
Factor out .
Step 2.1.39
Rewrite as .
Step 2.1.39.1
Rewrite as .
Step 2.1.39.2
Rewrite as .
Step 2.1.39.3
Raise to the power of .
Step 2.1.40
Multiply by .
Step 2.1.41
Multiply by .
Step 2.1.42
Apply the product rule to .
Step 2.1.43
Raise to the power of .
Step 2.1.44
Multiply by .
Step 2.1.45
Factor out .
Step 2.1.46
Rewrite as .
Step 2.1.46.1
Rewrite as .
Step 2.1.46.2
Rewrite as .
Step 2.1.46.3
Raise to the power of .
Step 2.1.47
Multiply by .
Step 2.1.48
Rewrite as .
Step 2.2
Simplify by adding terms.
Step 2.2.1
Subtract from .
Step 2.2.2
Add and .
Step 2.2.3
Subtract from .
Step 2.2.4
Simplify the expression.
Step 2.2.4.1
Add and .
Step 2.2.4.2
Subtract from .
Step 2.2.4.3
Reorder and .