1.

`(4 11/15+15/71)^(2)-(4 11/15-15/71)^(2)` के बराबर है?A. 1B. 2C. 3D. 4

Answer» Correct Answer - D
According to the question
`implies(4 11/15+15/71)^(2)-(4 11/5-15/71)^(2)`
`(a^(2)-b^(2))=(a-b)(a+b)`
`= (4 11/15+15/71+4 11/15-15/71)(4 11/15+15/71-4 11/15+15/71)`
`implies (2xx4 11/15)(2xx15/71)`
`implies (2xx71/15xx2xx15/71)implies4`


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