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CBSE Class 11-science Answered

7log16/15 +5log25/24 +3log81/80 is equal to
Asked by Anil | 03 May, 2017, 06:40: PM
answered-by-expert Expert Answer
begin mathsize 16px style 7 log 16 over 15 space plus 5 log 25 over 24 space plus 3 log 81 over 80 equals log open parentheses 16 over 15 close parentheses to the power of 7 plus log open parentheses 25 over 24 close parentheses to the power of 5 plus log open parentheses 81 over 80 close parentheses cubed equals log open parentheses open parentheses 16 over 15 close parentheses to the power of 7 cross times open parentheses 25 over 24 close parentheses to the power of 5 cross times open parentheses 81 over 80 close parentheses cubed close parentheses equals log open parentheses fraction numerator 2 to the power of 28 over denominator 3 to the power of 7 cross times 5 to the power of 7 end fraction cross times fraction numerator 5 to the power of 10 over denominator 2 to the power of 15 cross times 3 to the power of 5 end fraction cross times fraction numerator 3 to the power of 12 over denominator 2 to the power of 12 cross times 5 cubed end fraction close parentheses equals log open parentheses 2 to the power of 28 minus 12 minus 15 end exponent cross times 5 to the power of 10 minus 7 minus 3 end exponent cross times 3 to the power of 12 minus 7 minus 5 end exponent close parentheses equals log open parentheses 2 close parentheses end style
Answered by Sneha shidid | 04 May, 2017, 10:08: AM

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CBSE 11-science - Maths
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