Question

5. Using the principle of mathematical induction prove that, 3.6+6.9+9.12+…+3n(3n+3)=3n(n+1)(n+2)

How do i know my input vat and output vat during calculation for guinea?

sir i think there is some problem in the explanation of the text of theorem 8  of class 9th maths. plz do something for it 

how divide netprofit partners capital accounts throw tally entry

Fin d the general solution of 2 cos^2 x-3 sin x= 0

Prove that a cyclic parallelogram must be a rectangle?

if cos^-1x+cos^-1y=beta prove that x^2-2xycosbeta+y^2=sin^2beta

Triangle ABC and Triangle PBC are two isosceles triangle on the same base BC such that AB=AC and PB =PC.IF angle BAC=30 and angle BPC=40the find angle ABC?