Trigonometry Examples

$\arcsin (75)$

Step 1

Since $75$ is not an angle where the values of the six trigonometric functions are known, try using the sum or difference formula.

$75$ is not an exact angle

Step 2

First, split the angle into two angles where the values of the six trigonometric functions are known. In this case, $75$ can be split into $30 + 45$ .

$\arcsin (30 + 45)$

Step 3

Add $30$ and $45$ .

$\arcsin (75)$