Question

Find the exact value for csc225°

Answer 1

`-\sqrt2`

Explanation:

csc 225 degrees is the multiplicative inverse of sin 225 degrees. sin 225 degrees. We can use a unit circle with radius of 1 to find out sin 225 degrees. a 225 degree rotation counter clockwise is equivalent to a 180 degree turn followed by a 45 degree turn. Therefore, the final value is going to be in the third quadrant, a 45 degree turn in. This means that sin(225 degrees) =
`-\sqrt2/2` The multiplicative inverse of that is
`-\sqrt2`