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❓ Question Find the value of 81 1 log ⁡ 5 3 + 27 log ⁡ 9 36 + 3 4 log ⁡ 7 9 . 81^{\frac{1}{\log_5 3}} +27^{\log_9 36} +3^{\frac{4}{\log_7 9}}. ✍…

❓ Question If m = log ⁡ 245 175 , n = log ⁡ 1215 875 , m=\log_{245}175,\qquad n=\log_{1215}875, find the value of m − n 1 − m n . \frac{m-n}{1-mn}…