Trigonometry Examples

Evaluate -7/( square root of -49)
Step 1
Pull out imaginary unit .
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Step 1.1
Rewrite as .
Step 1.2
Rewrite as .
Step 1.3
Rewrite as .
Step 2
Simplify the denominator.
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Step 2.1
Rewrite as .
Step 2.2
Pull terms out from under the radical, assuming positive real numbers.
Step 3
Reduce the expression by cancelling the common factors.
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Step 3.1
Move to the left of .
Step 3.2
Cancel the common factor of and .
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Step 3.2.1
Factor out of .
Step 3.2.2
Cancel the common factors.
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Step 3.2.2.1
Factor out of .
Step 3.2.2.2
Cancel the common factor.
Step 3.2.2.3
Rewrite the expression.
Step 3.3
Move the negative in front of the fraction.