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CBSE Class 11-science Answered

<div><img src="https://images.topperlearning.com/topper/tinymce/imagemanager/files/f9885422988c17dfd71c8dafa71fc5a15a04d856b29e56.00987583NewQ4.jpg" alt="" />The question related to Binomial theorem is attached above. Please send the detailed solution.</div>
Asked by sudhanshubhushanroy | 10 Nov, 2017, 04:09: AM
Expert Answer
begin mathsize 16px style t h e r e space i s space s o m e t h i n g space m i s sin g space i n space t h e space q u e s t i o n space " i t space s h o u l d space b e space g i v e n space t h a t space n space i s space E V E N "
o t h e r w i s e space y o u space w o n apostrophe t space g e t space t h e space a n s.
Use space straight n to the power of th space term space formula space and
straight T subscript straight n space end subscript equals open parentheses space fraction numerator 1 over denominator 3 cube root of 9 end fraction close parentheses to the power of log subscript 3 8 end exponent
l a s t space t e r m space r space equals space n
straight C presuperscript straight n subscript n open parentheses 3 square root of 2 close parentheses to the power of straight n minus n end exponent open parentheses fraction numerator negative 1 over denominator square root of 2 end fraction close parentheses to the power of n equals open parentheses space fraction numerator 1 over denominator 3 cube root of 9 end fraction close parentheses to the power of log subscript 3 8 end exponent
we space get space straight n space equals space 10
straight T subscript r plus 1 space end subscript equals straight C presuperscript straight n subscript r open parentheses 3 square root of 2 close parentheses to the power of straight n minus r end exponent open parentheses fraction numerator negative 1 over denominator square root of 2 end fraction close parentheses to the power of r
then space find space straight T subscript 5. end style
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