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| 1. |
If `(1)/(6!) +(1)/(7!) = (x)/(8!)`, find x. |
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Answer» `(1)/(6!) + (1)/(7!) = (x)/(8!)` `rArr x = 8! ((1)/(6!)+(1)/(7!))= (8!)/(6!) +(8!)/(7!)` `=(8 xx 7 xx 6!)/(6!) +(8 xx 7!)/(7!)` ` = 56 +8 = 64` |
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