Trigonometry Examples

Simplify (tan(1/2x)+tan(1/8x))/(1-tan(1/2x)tan(1/8x))
tan(12x)+tan(18x)1-tan(12x)tan(18x)
Step 1
Simplify the numerator.
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Step 1.1
Combine 12 and x.
tan(x2)+tan(18x)1-tan(12x)tan(18x)
Step 1.2
Combine 18 and x.
tan(x2)+tan(x8)1-tan(12x)tan(18x)
tan(x2)+tan(x8)1-tan(12x)tan(18x)
Step 2
Simplify the denominator.
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Step 2.1
Combine 12 and x.
tan(x2)+tan(x8)1-tan(x2)tan(18x)
Step 2.2
Combine 18 and x.
tan(x2)+tan(x8)1-tan(x2)tan(x8)
tan(x2)+tan(x8)1-tan(x2)tan(x8)
 [x2  12  π  xdx ]