In statistics in mean formula we have add all sum of observation is alternate is there to add it.
find the number of solution of pair of equation 2 sin^2A - cos2A=0 and 2 cos^2A -3sinA [0,2π]
Integrate the following function with respect to x. tan^4〖√x 〖 sec〗^2√x 〗/√x.
categorise the solutions of systems of linear equation using inverse of matrix