here ZLS defines a line segment with end points Z and S.
so it represents line segment ZS
So option B is correct
3x+5y=10 and 5x-3y=-6 is perpendicular.
We are given with the expression or equation s<span>in2x cosx + cos 2x sin x = √3/2. The expression can be patterned from the trigonometric identity sin (a + b) = sin a cos B + cos A sin B. In this case, the expression is equal to sin 3x = sqrt 3 /2. using arc sign, x is equal to pi/9 </span>