My India

Two concentric circles with centre O are of radii 3 cm...

Prove that the lengths of tangents drawn from an external point...

Prove that 1+tan2 A 1+cot²A sec² A-1

A die is rolled once. Find the probability of getting:

If a, ẞ are zeroes of the quadratic polynomial x² –...

Find the area of the sector of a circle of radius...

PA and PB are tangents drawn to the circle with centre...

Find the coordinates of the point which divides the join of...

If sin a= , then find the value of (3 cos...

A (Assertion): A tangent to a circle is perpendicular to the...