1) How do you integrate Sin^2 x or cos^2 x I know that the integral of sin x is -cos x and that the integral of cos x is sin x but I don't know what to do with the square.

2)How do you integrate e^5x I know that the integral of e^x is e^x so is it just e^5x?

3)How do you do this: Find the tangent line to: (x^4 + 6xy +y^2 = 29) I don't know what to do with the y's