1.Which one of the following functions is continuous on (0,π)(0,\pi)(0,π)?a.f(x)=cotxf(x)=\cot xf(x)=cotxb.g(x)=∫0xsintt dtg(x)=\int_{0}^{x}\frac{\sin t}{t}\,dtg(x)=∫0xtsintdtc.h(x)={1,0<x<3π42sin2x9,3π4<x<πh(x)=\begin{cases} 1, & 0<x<\frac{3\pi}{4} \\ 2\sin\frac{2x}{9}, & \frac{3\pi}{4}<x<\pi \end{cases}h(x)={1,2sin92x,0<x<43π43π<x<πd.l(x)={xsinx,0<x≤π2sin(x+π2),π2<x<πl(x)=\begin{cases} x\sin x, & 0<x\le\frac{\pi}{2} \\ \sin(x+\frac{\pi}{2}), & \frac{\pi}{2}<x<\pi \end{cases}l(x)={xsinx,sin(x+2π),0<x≤2π2π<x<πLogin to continueOnly logged in users canattempt or see the solution.
