`int(x^9dx)/((4x^2+1)^9)i se q u a lto` (a)`1/(5x)(4+1/(x^2))^(-5)+c` (b) `1/5(4+1/(x^2))^(-5)+c` (c)`1/(10)(1+4x^2)^(-5)+c` (d) `1/(10)(4+1/(x^2))^(-5)+c`

int (dx)/((4x+5)^2+1)=

int(x^(9))/((4x^(2)+1)^(6))dx is equal to (A) (1)/(5x)(4+(1)/(x^(2)))^(-5)+c(B)(1)/(5)(4+(1)/(x^(2)))^(-5)+c(C)(1)/(10x)(4x+1)^(-5)+c (D) (1)/(10)((1)/(x^(2))+4)^(-5)+c

int(1)/(x^(4)+5x^(2)+1)dx

int(5x^2)/((x+1)(x^2+4))dx=

int(1)/(4x^(2)-4x+5)dx

int(x+(1)/(x))^(3/2)((x^(2)-1)/(x^(2)))dx is equal to (A) (1)/(3)(x+(1)/(x))^(3)+C (B)(2)/(5)(x+(1)/(x))^(5/2)

int_(0)^(1)(1)/(x^(2)+4x+5)dx =

int e^(x^(4))(x+x^(3)+2x^(5))e^(x^(2))dx is equal to (1)/(2)xe^(x^(2))e^(x^(4))+c( b) (1)/(2)x^(2)e^(x^(4))+c(1)/(2)e^(x^(2))e^(x^(4))+c(d)(1)/(2)x^(2)e^(x^(2))e^(x^(4))+c

int (2x+1)/(x^2+4x-5) dx

int(1)/(sqrt(5-4x-2x^(2)))dx