`((7.5)^(3)+1)/((7.5)^(2)-6.5)` के बराबर है?

Options

A. `2.75`
B. `9/5`
C. `4.75`
D. `8.5`

Answer

D

Explanation

According to the question
`implies((7.5)^(3)+1)/((7.5)^(2)-6.5)`
`[ :. a^(3)+b^(3)=(a+b)(a^(2)+b^(2)-ab)]`
`implies((7.5+1)[(7.5)^(2)+1-7.5xx1])/((7.5)^(2)-7.5xx1+1^(2))`
`implies 8.5`