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((-2)/5)^7-:((-2)/5)^5 is equal to (a)4...

`((-2)/5)^7-:((-2)/5)^5` is equal to (a)`4/(25)` (b) `(-4)/(25)` (c) `((-2)/5)^(12)` (d) `(25)/4`

Text Solution

Verified by Experts

`=(-2/5)^7div(-2/5)^5`
`=(-2/5)^(7-5)`
`=(-2/5)^2`
`=4/25`
Hence, option (a) is the correct answer.
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