1.

यदि `p-2q=4` है तो `p^(3)-8q^(3)-24pq-64` का मान ज्ञात करें।A. 2B. 0C. 3D. -1

Answer» Correct Answer - B
`p-2q=4`
Take cube on both sides
`(p-2q)^(3)=(4)^(3)`
`p^(3)-8q^(3)-3pxx2q(p-2q)=64`
`p^(3)-8q^(3)-6pqxx4=64`
`p^(3)-8q^(3)-24pq=64`
`p^(3)-8q^(3)-24pq-64=0`


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