Tangent length from a point at a distance of 12cm of a circle is 10cm find the radius of the circle
find the equations of the sides of equilateral triangle whose vertex is (2,3) and base is y-axis
Prove that 1 + 1 /1+2 + 1 /1+2+3 + ………. + 1/ 1+2+3+⋯+𝑛 = 2𝑛/ 𝑛+1 ; n ∈