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Trigonometry Examples
Step 1
Step 1.1
Divide each term in by .
Step 1.2
Simplify the left side.
Step 1.2.1
Cancel the common factor of .
Step 1.2.1.1
Cancel the common factor.
Step 1.2.1.2
Divide by .
Step 1.3
Simplify the right side.
Step 1.3.1
Multiply the numerator by the reciprocal of the denominator.
Step 1.3.2
Multiply by .
Step 2
Take the inverse cosine of both sides of the equation to extract from inside the cosine.