Megan wanted to solve this problem, what did she do wrong?
D
There's a square root on the denominator of the solution.
multiply top and bottom by $\sqrt3$
The problem is in the set -up
sin ^2 x + cos^2 x = 1
But
(-sqrt (2) / 2)^2 + ( sqrt (3) / 2) ^2 =
2/4 + 3/4 = 5/4
{ The sine should probably be -1/2 to make this work }