`(3^8 xx b^6)/(9^3 xx b^4)`

If root3((3^(6) xx 4^(3) xx 2^(6))/(8^(9) xx2^(3)))=(3/8)^(k) ,then k = _______ .

Find the unit digit of 3^6 xx 4^7 xx 6^3 xx 7^4 xx 8^2 xx 9^5 .

Solve : ( 3^8 times a^6 )/ (9^3 times a^3 )

(2^(8)xx a^(8)b^(3))/(4^(3)y xx a^(5)b^(2))

Find Value of:- 4+3 xx 4 +3 xx 4^(2) +3xx 4^(3) +3 xx 4^(4) +3 xx 4^(5) = ? (a) 5 xx 4^(5) (b) 9xx 4^(4) (c) 4^(6) (d) 10 xx 4^(4)