posted by Anonymous .
If dy/dx = x (cos x^2) and y = −3 when x = 0, when x = pi, y = .
For some odd reason, I keep getting -0.5325989. I can't come up with any of the answers given.
sub u=x², du=2xdx
When x=0, u=0, y=-3 => C=3
Note that if you use your calculator, make sure you put the angle to be in radians mode to get the correct answer.
y=sin(pi^2)-3 yields approximately -3.430301217, which still doesn't fit the bill for the options I am given.
Sorry that there was a typo (I forgot to divide sin(x²) by 2):