Trigonometry Examples

Find the Exact Value csc(-pi/12)
Step 1
Add full rotations of until the angle is greater than or equal to and less than .
Step 2
The exact value of is .
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Step 2.1
Apply the reference angle by finding the angle with equivalent trig values in the first quadrant. Make the expression negative because cosecant is negative in the fourth quadrant.
Step 2.2
Split into two angles where the values of the six trigonometric functions are known.
Step 2.3
Apply the difference of angles identity.
Step 2.4
The exact value of is .
Step 2.5
The exact value of is .
Step 2.6
The exact value of is .
Step 2.7
The exact value of is .
Step 2.8
The exact value of is .
Step 2.9
The exact value of is .
Step 2.10
The exact value of is .
Step 2.11
The exact value of is .
Step 2.12
Simplify .
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Step 2.12.1
Simplify the numerator.
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Step 2.12.1.1
Multiply by .
Step 2.12.1.2
Combine and .
Step 2.12.1.3
Combine and .
Step 2.12.2
Simplify the denominator.
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Step 2.12.2.1
Multiply by .
Step 2.12.2.2
Combine and simplify the denominator.
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Step 2.12.2.2.1
Multiply by .
Step 2.12.2.2.2
Raise to the power of .
Step 2.12.2.2.3
Raise to the power of .
Step 2.12.2.2.4
Use the power rule to combine exponents.
Step 2.12.2.2.5
Add and .
Step 2.12.2.2.6
Rewrite as .
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Step 2.12.2.2.6.1
Use to rewrite as .
Step 2.12.2.2.6.2
Apply the power rule and multiply exponents, .
Step 2.12.2.2.6.3
Combine and .
Step 2.12.2.2.6.4
Cancel the common factor of .
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Step 2.12.2.2.6.4.1
Cancel the common factor.
Step 2.12.2.2.6.4.2
Rewrite the expression.
Step 2.12.2.2.6.5
Evaluate the exponent.
Step 2.12.2.3
Cancel the common factor of .
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Step 2.12.2.3.1
Cancel the common factor.
Step 2.12.2.3.2
Rewrite the expression.
Step 2.12.2.4
Multiply by .
Step 2.12.2.5
Combine and simplify the denominator.
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Step 2.12.2.5.1
Multiply by .
Step 2.12.2.5.2
Raise to the power of .
Step 2.12.2.5.3
Raise to the power of .
Step 2.12.2.5.4
Use the power rule to combine exponents.
Step 2.12.2.5.5
Add and .
Step 2.12.2.5.6
Rewrite as .
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Step 2.12.2.5.6.1
Use to rewrite as .
Step 2.12.2.5.6.2
Apply the power rule and multiply exponents, .
Step 2.12.2.5.6.3
Combine and .
Step 2.12.2.5.6.4
Cancel the common factor of .
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Step 2.12.2.5.6.4.1
Cancel the common factor.
Step 2.12.2.5.6.4.2
Rewrite the expression.
Step 2.12.2.5.6.5
Evaluate the exponent.
Step 2.12.2.6
Multiply .
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Step 2.12.2.6.1
Combine and .
Step 2.12.2.6.2
Combine using the product rule for radicals.
Step 2.12.2.6.3
Multiply by .
Step 2.12.2.7
To write as a fraction with a common denominator, multiply by .
Step 2.12.2.8
Combine and .
Step 2.12.2.9
Combine the numerators over the common denominator.
Step 2.12.2.10
Multiply by .
Step 2.12.3
Simplify the numerator.
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Step 2.12.3.1
Multiply by .
Step 2.12.3.2
Multiply by .
Step 2.12.4
Simplify the denominator.
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Step 2.12.4.1
Combine using the product rule for radicals.
Step 2.12.4.2
Multiply by .
Step 2.12.5
Simplify the numerator.
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Step 2.12.5.1
Combine and into a single radical.
Step 2.12.5.2
Cancel the common factor of and .
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Step 2.12.5.2.1
Factor out of .
Step 2.12.5.2.2
Cancel the common factors.
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Step 2.12.5.2.2.1
Factor out of .
Step 2.12.5.2.2.2
Cancel the common factor.
Step 2.12.5.2.2.3
Rewrite the expression.
Step 2.12.5.3
Rewrite as .
Step 2.12.5.4
Any root of is .
Step 2.12.5.5
Multiply by .
Step 2.12.5.6
Combine and simplify the denominator.
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Step 2.12.5.6.1
Multiply by .
Step 2.12.5.6.2
Raise to the power of .
Step 2.12.5.6.3
Raise to the power of .
Step 2.12.5.6.4
Use the power rule to combine exponents.
Step 2.12.5.6.5
Add and .
Step 2.12.5.6.6
Rewrite as .
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Step 2.12.5.6.6.1
Use to rewrite as .
Step 2.12.5.6.6.2
Apply the power rule and multiply exponents, .
Step 2.12.5.6.6.3
Combine and .
Step 2.12.5.6.6.4
Cancel the common factor of .
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Step 2.12.5.6.6.4.1
Cancel the common factor.
Step 2.12.5.6.6.4.2
Rewrite the expression.
Step 2.12.5.6.6.5
Evaluate the exponent.
Step 2.12.5.7
Combine and .
Step 2.12.6
Multiply the numerator by the reciprocal of the denominator.
Step 2.12.7
Cancel the common factor of .
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Step 2.12.7.1
Cancel the common factor.
Step 2.12.7.2
Rewrite the expression.
Step 2.12.8
Combine and .
Step 2.12.9
Combine and .
Step 2.12.10
Cancel the common factor of and .
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Step 2.12.10.1
Factor out of .
Step 2.12.10.2
Cancel the common factors.
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Step 2.12.10.2.1
Factor out of .
Step 2.12.10.2.2
Factor out of .
Step 2.12.10.2.3
Factor out of .
Step 2.12.10.2.4
Cancel the common factor.
Step 2.12.10.2.5
Rewrite the expression.
Step 2.12.11
Multiply by .
Step 2.12.12
Multiply by .
Step 2.12.13
Expand the denominator using the FOIL method.
Step 2.12.14
Simplify.
Step 2.12.15
Cancel the common factor of and .
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Step 2.12.15.1
Factor out of .
Step 2.12.15.2
Cancel the common factors.
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Step 2.12.15.2.1
Factor out of .
Step 2.12.15.2.2
Cancel the common factor.
Step 2.12.15.2.3
Rewrite the expression.
Step 2.12.16
Apply the distributive property.
Step 2.12.17
Multiply .
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Step 2.12.17.1
Combine using the product rule for radicals.
Step 2.12.17.2
Multiply by .
Step 2.12.18
Combine using the product rule for radicals.
Step 2.12.19
Simplify each term.
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Step 2.12.19.1
Multiply by .
Step 2.12.19.2
Rewrite as .
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Step 2.12.19.2.1
Factor out of .
Step 2.12.19.2.2
Rewrite as .
Step 2.12.19.3
Pull terms out from under the radical.
Step 2.12.20
Cancel the common factor of and .
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Step 2.12.20.1
Factor out of .
Step 2.12.20.2
Factor out of .
Step 2.12.20.3
Factor out of .
Step 2.12.20.4
Cancel the common factors.
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Step 2.12.20.4.1
Factor out of .
Step 2.12.20.4.2
Cancel the common factor.
Step 2.12.20.4.3
Rewrite the expression.
Step 2.12.20.4.4
Divide by .
Step 2.12.21
Apply the distributive property.
Step 3
The result can be shown in multiple forms.
Exact Form:
Decimal Form: