Question

(2/5)^3×(2/5)^5÷(2/5)^7=? ​

Answer 1

Answer:

2/5

Step-by-step explanation:

Using identies,

(2/5)^3*(2/5)^5/(2/5)^7  gets converted into

(2/5)^(3+5-7)                                          a^m*a^n=a^m+n,   a^m/a^n=a^m-

(2/5)^1=2/5

Answer 2

Answer is 2/5¹

Step-by-step explanation:

Take all the 2/5 as common

Now in case of multiple we need to add the power and in division we need to subtract the power.

so

the answer will be 2/5^(3+5-7)

=> 2/5^(8-7)

=> 2/5¹