Question
If `5sqrt(5) xx 5^3 -: 5^(-3/2)` = `5^(a + 2)`, then the value of a is :
Answer: Option A
Was this answer helpful ?
`5sqrt(5) xx 5^3 -: 5^(-3/2)` = `5^(a + 2)` `hArr` `(5 xx 5^(1/2) xx 5^3)/(5^(- 3/2))` = `5^(a + 2)`
`hArr 5^((1 + 1/2 + 3 + 3/2)) = 5^(a + 2) hArr 5^6 = 5^(a + 2) hArr a + 2 = 6 hArr a = 4`.
Was this answer helpful ?
More Questions on This Topic :
Question 5.
`(25)^7.5 xx (5)^2.5 -: (125)^1.5` = `5^?`.
....
Question 6.
`(18)^3.5 -: (27)^3.5 xx 6^3.5`= `2^?`
....
Question 7.
`(64)^(-(1)/(2)) - (- 32)^(-(4)/(5)) `= ?
....
Question 8.
The value of `(8^-25 - 8^-26)` is
....
Question 9.
`49 xx 49 xx 49 xx 49` = `7^?`
....
Question 10.
`(17)^3.5 xx (17)^?` = `17^8`
....
Latest Videos
Latest Test Papers
Submit Solution