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Trigonometry Examples
Step 1
If any individual factor on the left side of the equation is equal to , the entire expression will be equal to .
Step 2
Set equal to .
Step 3
Step 3.1
Set equal to .
Step 3.2
Solve for .
Step 3.2.1
Take the inverse sine of both sides of the equation to extract from inside the sine.
Step 3.2.2
Simplify the right side.
Step 3.2.2.1
The exact value of is .
Step 3.2.3
Add to both sides of the equation.
Step 3.2.4
The sine function is positive in the first and second quadrants. To find the second solution, subtract the reference angle from to find the solution in the second quadrant.
Step 3.2.5
Solve for .
Step 3.2.5.1
Subtract from .
Step 3.2.5.2
Add to both sides of the equation.
Step 3.2.6
Find the period of .
Step 3.2.6.1
The period of the function can be calculated using .
Step 3.2.6.2
Replace with in the formula for period.
Step 3.2.6.3
The absolute value is the distance between a number and zero. The distance between and is .
Step 3.2.6.4
Divide by .
Step 3.2.7
The period of the function is so values will repeat every radians in both directions.
, for any integer
, for any integer
, for any integer
Step 4
The final solution is all the values that make true.
, for any integer