DIAGNOSTIC TEST CALCULUS 2 MATH 208
1. The derivative of f(x) = x cosx is 1 sin x cos x + x sin x cos x - x sin x -1 sinx
Wrong! The derivative of uv is (uv)’ = u’v+uv’ NOT u’v’ Click here to continue Click here to try again
Wrong! The derivative of cos x is – sin x, not sin x Click here to continue Click here to try again
Correct! Great job!
2. The derivative of f(x) = is
Wrong! The derivative of is Click here to continue Click here to try again
Correct! Great job!
3. The derivative of f(x) = sin3x is 3 sin x cos x -3 sin2x cos x 3 sin2x cos x 3 sin2 x
Wrong! The derivative of un is (un)’ = nun-1u’ and The derivative of sin x is cos x, not – cos x Click here to continue Click here to try again
Correct! Great job!
4. An antiderivative of x2+ sec2 x is 2x + 2sec2x tan x x3/3 + tan x x3/3 - tan x
Wrong! The derivative of x2 is 2x, the antiderivative is x3/3 The antiderivative of sec2x is tanx Click here to continue Click here to try again
Correct! Great job!
5. The integral (x5 – cos 2x)dx is 5x4 - 2sin 2x x5/5 + (sin 2x)/2 x5/5 – 2 sin 2x x5/5 – (sin 2x)/2
Wrong! The derivative of x5 is 5x4, the antiderivative is x5/5 The antiderivative of cos nx is (sin nx)/n Click here to continue Click here to try again
Correct! Great job!
CONGRATULATION! YOU ARE DONE!