How many prime numbers are there between 0 and 30
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+โฏ+๐ = 2๐/ ๐+1 ; n ∈