C-09-Q079mediumsingle_mcqIf 15cotA=815\cot A = 815cotA=8, sinA=?\sin A = ?sinA=?a817\dfrac{8}{17}178b1517\dfrac{15}{17}1715c1715\dfrac{17}{15}1517d815\dfrac{8}{15}158ব্যাখ্যাWith opposite =15=15=15, adjacent =8=8=8, hypotenuse =17=17=17, the sine is the ratio of opposite to hypotenuse. So sinA=1517\sin A = \dfrac{15}{17}sinA=1715.