could some one please help me and explain how to find the area under the curve Y=sin(x) between x=0 and x=1.7pi
Thanks
Since you know that the sine curve has an intercept at $\displaystyle \displaystyle \begin{align*} x = \pi \end{align*}$, you will need to evaluate
$\displaystyle \displaystyle \begin{align*} A = \left| \int_0^{\pi} \sin{x}\,dx \right| + \left| \int_{\pi}^{1.7\pi} \sin{x}\,dx \right| \end{align*}$