Find the parametric equations of a circle , centered at origin(0,0) with radius 'r'.

 

What is a variable form of a differential equation?How can we solve it?

 

Find the value of ∫1/(x+1)^2 dx.

 

What is the gradient of a line whose angle of inclination is 150° ?

 We know that gradient of a line is The

 slope of this very line.

Let m be the slope of the given line, then,

Gradient =m= tan150°

=tan(180°-30°) = - tan 30° = -1/√3 Ans.

What is the standard form of equation of a circle?

 

Solve 2x²+x-528=0