Question

prove that 2 raise to power30 +2 raise to power 29 + 2 raise to power 28/2 raise to power 31+ 2raise to power 30- 2 raise to power 29 =7/10

Answer 1

Hi friend​,

Hope this helped u..

Answer 2

(2^30+2^29+2^28)/(2^31+2^30-2^29) = 7/10

2^28(2²+2¹+1)/2^28(2³+2²-2¹) = 7/10

(2²+2¹+1)/(2³+2²-2¹) = 7/10

(4+2+1)/(8+4-2) = 7/10

7/12-2 = 7/10

7/10 = 7/10

LHS = RHS

Hence proved.

Hope it helps ......