Sum of n terms of an Ap is 3n^2+5n and mth term is 164,m=?
Could you please solve it. It waa on your app.
I am unable to understand it..
Thank you
Sir in one of your videos it was given that
tanA+cotA=2cosec2A
And
cot A - tanA=2cot2A
Sir could you please prove these 2 identities i am unable to prove.
Thank you sir.