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Trigonometry Examples
Step 1
Rewrite the equation as .
Step 2
Simplify the expression using the formula.
Step 3
Remove the from both sides of the equation.
Step 4
Since the square roots of each expression are equal, the expression inside the square root must also be equal.
Step 5
Multiply both sides of the equation by .
Step 6
Step 6.1
Simplify the left side.
Step 6.1.1
Cancel the common factor of .
Step 6.1.1.1
Cancel the common factor.
Step 6.1.1.2
Rewrite the expression.
Step 6.2
Simplify the right side.
Step 6.2.1
The exact value of is .
Step 7
Subtract from both sides of the equation.
Step 8
Convert the right side of the equation to its decimal equivalent.
Step 9
The range of cosine is . Since does not fall in this range, there is no solution.
No solution