This question was asked in Ex 4.1, 2
7 to the power 2n plus 2 to the power 3n-3× 3to the power n-1 is divisible by 25

Damini Dogra's image
Damini Dogra
Sept. 16, 2019, 4:56 p.m.

Answer the question...

Damini Dogra's image