`(3^(25)+3^(26)+3^(27)+3^(28)` विभाजित है।

Which one of the following numbers will completely divide (3^(25)+3^(26)+3^(27)+3^(28))?

(3^(25)+3^(26)+3^(27)+3^(28)) is divisible by 11 (b) 16(c)25 (d) 30

Four geometric means are inserted between 3^(13)-1 and 3^(13)+1. The product of these geometric means is ( i )3^(26)-1 (ii) 3^(52)-2*3^(26)+1( iii) 3^(52)+2*3^(26)-1( iv )3^(52)-3^(26)+1

((4)/(9))^(2)-:((28)/(27))^(3)

23 26 24 27 25 28 ?

((3)/(5))^(3)((25)/(27))= _____.

(37^(3)-28^(3))/(37^(2)+37.28+28^(2))=