Trigonometry Examples

Simplify (1-i)^7
Step 1
Use the Binomial Theorem.
Step 2
Simplify terms.
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Step 2.1
Simplify each term.
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Step 2.1.1
One to any power is one.
Step 2.1.2
One to any power is one.
Step 2.1.3
Multiply by .
Step 2.1.4
Multiply by .
Step 2.1.5
One to any power is one.
Step 2.1.6
Multiply by .
Step 2.1.7
Apply the product rule to .
Step 2.1.8
Raise to the power of .
Step 2.1.9
Multiply by .
Step 2.1.10
Rewrite as .
Step 2.1.11
Multiply by .
Step 2.1.12
One to any power is one.
Step 2.1.13
Multiply by .
Step 2.1.14
Apply the product rule to .
Step 2.1.15
Raise to the power of .
Step 2.1.16
Factor out .
Step 2.1.17
Rewrite as .
Step 2.1.18
Rewrite as .
Step 2.1.19
Multiply by .
Step 2.1.20
Multiply by .
Step 2.1.21
One to any power is one.
Step 2.1.22
Multiply by .
Step 2.1.23
Apply the product rule to .
Step 2.1.24
Raise to the power of .
Step 2.1.25
Multiply by .
Step 2.1.26
Rewrite as .
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Step 2.1.26.1
Rewrite as .
Step 2.1.26.2
Rewrite as .
Step 2.1.26.3
Raise to the power of .
Step 2.1.27
Multiply by .
Step 2.1.28
One to any power is one.
Step 2.1.29
Multiply by .
Step 2.1.30
Apply the product rule to .
Step 2.1.31
Raise to the power of .
Step 2.1.32
Factor out .
Step 2.1.33
Rewrite as .
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Step 2.1.33.1
Rewrite as .
Step 2.1.33.2
Rewrite as .
Step 2.1.33.3
Raise to the power of .
Step 2.1.34
Multiply by .
Step 2.1.35
Multiply by .
Step 2.1.36
Multiply by .
Step 2.1.37
Apply the product rule to .
Step 2.1.38
Raise to the power of .
Step 2.1.39
Multiply by .
Step 2.1.40
Factor out .
Step 2.1.41
Rewrite as .
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Step 2.1.41.1
Rewrite as .
Step 2.1.41.2
Rewrite as .
Step 2.1.41.3
Raise to the power of .
Step 2.1.42
Multiply by .
Step 2.1.43
Rewrite as .
Step 2.1.44
Multiply by .
Step 2.1.45
Apply the product rule to .
Step 2.1.46
Raise to the power of .
Step 2.1.47
Rewrite as .
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Step 2.1.47.1
Factor out .
Step 2.1.47.2
Factor out .
Step 2.1.48
Rewrite as .
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Step 2.1.48.1
Rewrite as .
Step 2.1.48.2
Rewrite as .
Step 2.1.48.3
Raise to the power of .
Step 2.1.49
Multiply by .
Step 2.1.50
Rewrite as .
Step 2.1.51
Rewrite as .
Step 2.1.52
Multiply by .
Step 2.1.53
Multiply by .
Step 2.2
Simplify by adding terms.
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Step 2.2.1
Subtract from .
Step 2.2.2
Simplify by adding and subtracting.
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Step 2.2.2.1
Add and .
Step 2.2.2.2
Subtract from .
Step 2.2.3
Add and .
Step 2.2.4
Subtract from .
Step 2.2.5
Add and .