Ex 7.6 with by part

Differentiate f (x) = 3sinx - 4sin³x²

ise ques ma hamna ek baar cos aur ek bar sin kyu liya ha

9th 6.2

advance tax calculations

Find the equation of a curve passing through the point (1,1) if the perpendicular distance of the origin from the normal at any point p(x,y) of the curve is equal to the distance of p from x_axis

4.5,15

What is the minimum interior angle possible for a regular polygon? why?

Find the equation of a curve passing through the point (1,1) if the perpendicular distance of the origin from the normal at any point p(x,y) of the curve is equal to the distance of p from x_axis.

If sin^ -1 x + sin^-1 y= theta, prove that x^2 + y^2 + 2xy cos theta = sin^2 theta

prove this plzzz!!!..