A square has 36 sub-squares in it. How to Number each sub squares from 1 to 36, to make the sum of vertical, the sum of horizontal, and the sum of cross line are the same .Describe in general if possible.

Find the value: P=sin(1⁰)sin(3⁰)sin(5⁰)...sin(89⁰) ?

If f(n)=a^n+b^n+c^n   and f(1)=1,f(2)=2,f(3)=3 ,n=1,2,3,.... Find f(5) ?

Let a,b and c be the three roots of the equation :2012x^3+2013x+2014=0.Find (a+b)^3+(b+c)^3+(c+a)^3?

Find a(n)of sequence:5, 7, 7, 2, 1, 5, 6, 6, 4, ...............