Question

please answer option (d)

Answer 1

(279936)^1/7

Now it is divisible by 8,
279936 = 8 X 34992=8X8X4374 = 8X8X2X2187 = 2^7 X 27X27X3=2^7 X 3^7
Answer = 6

Answer 2

(279936)1/7 

[(6)to the power7]to the power1/7

7and 1/7 will cancel
anwer will be 6

hope it may help you