Question

7.1 To solve ∫ ?? / (√7−?^(2))    by trig substitution, we should set x = which of the following ?
x = sin θ x = 7 tan θ x = 7 sin θ

x = √7 sin θ    x = 72 sin θ x = 7 sin2 θ


7.2 To use Integration by Parts with ∫e^(2x) x^(2) dx , we should choose which ?

u = x and dv = ex dx    u = e2x and dv = x2 dx
u = ex and dv = x2 dx u = x2 and dv = e2x dx
u = ex x and dv = ex x dx    u = x and dv = e2x x dx


7.3 To use Integration by Parts with ∫ ln x dx , we should choose which ?

u = x and dv = ln dx    u = x and dv = ln x dx
u = ln x and dv = dx u = 1 and dv = ln x dx
u = dx and dv = ln x    u = ln x dx and dv = 1

Answer 1