\(\dfrac{25^2.25^3}{5^{10}}\\ =\dfrac{25^{2+3}}{5^{10}}\\ =\dfrac{25^5}{5^{10}}\\ =\dfrac{\left(5^2\right)^5}{5^{10}}\\ =\dfrac{5^{10}}{5^{10}}=1\)
`(25^2 . 25^3 )/(5^(10))`
`= ( 25^(2+3))/(5^(10))`
`= (25^5)/(5^(10))`
`= ((5^2)^5)/(5^(10))`
`=(5^(10))/(5^(10)`
`=1`
`->A`
