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CBSE Class 11-science Answered

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Asked by araima2001 | 22 Mar, 2017, 01:37: PM
answered-by-expert Expert Answer
begin mathsize 16px style Consider comma space straight b subscript straight n equals log subscript 5 open parentheses straight a subscript straight n close parentheses space space space space equals log subscript 5 open square brackets log open parentheses 7 over 5 close parentheses to the power of straight n close square brackets space space space space space equals straight n log subscript 5 open square brackets log open parentheses 7 over 5 close parentheses close square brackets Then straight b subscript 1 equals log subscript 5 open square brackets log open parentheses 7 over 5 close parentheses close square brackets space space space space space space space space space space space..... open parentheses straight i close parentheses straight b subscript 2 equals 2 log subscript 5 open square brackets log open parentheses 7 over 5 close parentheses close square brackets space space space space space space space space space..... open parentheses ii close parentheses straight b subscript 3 equals 3 log subscript 5 open square brackets log open parentheses 7 over 5 close parentheses close square brackets space space space space space space space space space space..... open parentheses iii close parentheses From space open parentheses straight i close parentheses comma open parentheses ii close parentheses comma open parentheses iii close parentheses straight b subscript 2 minus straight b subscript 1 equals 2 log subscript 5 open square brackets log open parentheses 7 over 5 close parentheses close square brackets space minus log subscript 5 open square brackets log open parentheses 7 over 5 close parentheses close square brackets space space space space space space space space space space space space space equals log subscript 5 open square brackets log open parentheses 7 over 5 close parentheses close square brackets space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space........ open parentheses iv close parentheses straight b subscript 3 minus straight b subscript 2 equals 3 log subscript 5 open square brackets log open parentheses 7 over 5 close parentheses close square brackets space minus 2 log subscript 5 open square brackets log open parentheses 7 over 5 close parentheses close square brackets space space space space space space space space space space space space space equals log subscript 5 open square brackets log open parentheses 7 over 5 close parentheses close square brackets space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space........ open parentheses straight v close parentheses Hence comma space from space open parentheses iv close parentheses space and space open parentheses straight v close parentheses we space can space say space that space straight b subscript straight n space is space in space Arithmetic space Progression. space space space end style
Answered by Sneha shidid | 22 Mar, 2017, 04:22: PM

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CBSE 11-science - Maths
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CBSE 11-science - Maths
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CBSE 11-science - Maths
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