Let x be in the 2nd quadrant such that sin(x) = a.
Evaluate the expression in terms of a
Cos^2(arcsin(a))
Any help?
Printable View
Let x be in the 2nd quadrant such that sin(x) = a.
Evaluate the expression in terms of a
Cos^2(arcsin(a))
Any help?
Sooooooooo...
Should be solvable from there
Last hint: