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`7^( 8.9)div(343)^(1.7)xx(49)^(4.8)=7^(?)`

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`7^( 8.9)div(343)^(1.7)xx(49)^(4.8)=7^(?)`
A. 13.4
B. 12.8
C. 11.4
D. 9.6
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Correct Answer - A
`7^(8.9)div(343)^(1.7)xx(49)^(4.8)=7^(?)`
`(7^(8.9))/(7^(3)xx1.7)xx7^(2xx4.8)=7^(?)`,
`(7^(8.9))/(7^(5.1))xx7^(9.6)=7^(?)`
`7^(8.9-5.1+9.6)=7^(?)`
`:. ?=13.4`
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