(√845 ×19.932+ √4230 ×14.385)/(√1765 ×4.877 ) = ?
(√845 ×19.932+ √4230 ×14.385)/(√1765 ×4.877 ) => (√841 ×20+ √4225 ×14)/(√1764 ×5) => (29 ×20+65 ×14)/(42 ×5) => (580 +910)/210 => 1490/210 = 7.09 = 7
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