circles theram

1. 22÷7×12×33 kaise solve hoga
   

1*2+2*3+3*4+...+m(n+1)=m(n+1)(n+2)/3

Hello,

Could you please help me to prove this?

sec2x-tan2x

differentiate x^(sinx-cosx) +x^2-1/x^2+1

Corollary of BPT

Construct a triangle PQR in which QR=6cm,angle Q=60 and PR-PQ=2cm

What to do for senior tax accountant and tax consultant?

find the direction cosines of the vector which is perpandicular to the vector with direction ratios 1,2,2 and 0,2,1

Maths