1.

यदि `a=(sqrt(x+2)+sqrt(x-2))/(sqrt(x+2)-sqrt(x-2))` है तो `a^(2)-ax` का मान क्या होगा?A. 2B. 1C. 0D. -1

Answer» Correct Answer - D
According to the question
`a=(sqrt(x+2)+sqrt(x-2))/(sqrt(x+2)-sqrt(x-2))`
Put `x=2`
`a=(sqrt(2+2)+sqrt(2-2))/(sqrt(2+2)-sqrt(2-2))`
`a=(sqrt(4))/(sqrt(4))=1`
`a^(2)-ax=1^(2)-1xx2=1-2=-1`


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