∫ ( sin x + x cos x ) dx
∫ (sin x + x cos x )( log x ) dx
∫12 dt / √t
∫0π cos x dx
∫02 ex dx
∫1e2 dx /x
∫41 dy / y2
∫0π/3 dx / cos2 x
∫12 2x dx
∫1e { ( x + 1 ) / x }2 dx
∫23 dx / x ( x - 1 )
∫0π/4 tan2 x dx
∫01 ( et/2 + e-t/2 ) dt
∫03 sin { (2/3)πt + (π/4) } dt
