A Level

MATHEMATICS · Single correct · A Level · Mathematics · Integration · Integration

Problem

\int \frac{(2x+1)}{(x^2+4x+1)^{3/2}} dx

(1)

\frac{x^3}{(x^2+4x+1)^{1/2}} + C

(2)

\frac{x}{(x^2+4x+1)^{1/2}} + C

(3)

\frac{x^2}{(x^2+4x+1)^{1/2}} + C

(4)

\frac{1}{(x^2+4x+1)^{1/2}} + C