Practice Test Answers

1. 2 cos(2x) or 2 cos^2(x) - 2 sin^2(x)
2. 2x csc(5x) - 5x^2 csc (5x) cot (5x)
3. (2x+1)^1/2 + x(2x+1)^-1/2 or (3x+1)/(2x+1)^1/2
4. -4/(2x-1)^2
5. (1/2)x^-1/2 - (1/2)x^-3/2 or (x-1)/2x^3/2
6. -4x tan(3-x^2) sec^2(3-x^2)

1. 22
2. 19
3. 4x-3

I'll be on tonight if you have any questions & I'll be in my room in the morning around 7:30.