plzz ....prove that :tan3A-tan4A-tanA = tan3A tan2A tanA

vibhor gupta

plzz ....prove that :rates assured

tan3A - tan4A - tanA = tan3A tan2A tanA

Deepak Aggarwal

tan(3A) = tan(2A + A) =( tan(2A) + tan(A) ) / ( 1 - tan(2A) tan(A) )

tan(3A) - tan(A) tan(2A) tan(3A) = tan(2A) + tan(A)

tan(3A) - tan(2A) - tan(A) = tan(A) tan(2A) tan(3A)

I think there's some problem in the question. Its not 4A but 2A.

rahulmishra

for sure ! it's not tan 4A but tan 2A

rahulmishra

Thanks Vibhor for the link "Glitter Graphics", I too have created my animated text. Really cool !!!!!!!!!!!!!!!!!!!!!!!