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If `6^(x-y)=36` and `3^(x+y)=729`, then find `x^(2)-y^(2)`.A. 12B. 4C. 24D. 8 |
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Answer» Correct Answer - A `6^(x-y)=36` `6^(x-y)=6^(2)` `:. x-y=2` (1) and `3^(x+y)=3^(6) implies x+y=6` (2) From (1) and (2), `x^(2)-y^(2)=12`. |
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