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`(23.1)^(2)+(48.6)^(2)-(39.8)^(2)=?+1147.69`

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`(23.1)^(2)+(48.6)^(2)-(39.8)^(2)=?+1147.69`
A. `(13.6)^(2)`
B. `sqrt(12.8)`
C. 163.84
D. 12.8
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Correct Answer - C
`?+1147.69=(23.1)^(2)+(48.6)^(2)+(48.6)^(2)-(39.8)^(2)`
`:. ?=533.61+2361.96-1584.04-1147.69=163.84`
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`(23.1)^(2)+(48.6)^(2)-(39.8)^(2)=? + 1147.69`
asked Nov 12, 2021 in Mathematics by sumitAgrawal (82.5k points)

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