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यदि `c+1/c=3`, हो तो `(c-3)^(7)+1/(c^(7))` का मान क्या है?

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यदि `c+1/c=3`, हो तो `(c-3)^(7)+1/(c^(7))` का मान क्या है?
A. 2
B. 0
C. 3
D. 1
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Correct Answer - B
`C+1/C=3`
`C-3+1/C=0`
So `(C-3)^(7)+1/(C^(7))=[(C-3)+1/C]^(3)`
`[(C-3)+1/C]^(4)-[(C-3)+1/C]=0`
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