Trigonometry Examples

Find the Sine (-40/41,9/41)
To find the between the x-axis and the line between the points and , draw the triangle between the three points , , and .
Opposite :
Adjacent :
Find the hypotenuse using Pythagorean theorem .
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Use the power rule to distribute the exponent.
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Apply the product rule to .
Apply the product rule to .
Raise to the power of .
Multiply by .
Raise to the power of .
Raise to the power of .
Apply the product rule to .
Raise to the power of .
Raise to the power of .
Combine the numerators over the common denominator.
Add and .
Divide by .
Any root of is .
therefore .
Divide by .
Approximate the result.
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