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CBSE Class 11-science Answered

50c11+50c12+51c13-52c13
Asked by sailaxmareddy123 | 23 Aug, 2020, 10:38: PM
Expert Answer
To find the value of 50c11+50c12+51c13-52c13
As space space to the power of straight n straight C subscript straight r plus to the power of straight n straight C subscript straight r minus 1 end subscript equals to the power of straight n plus 1 end exponent straight C subscript straight r
to the power of 50 straight C subscript 11 plus to the power of 50 straight C subscript 12 plus to the power of 51 straight C subscript 13 minus to the power of 52 straight C subscript 13 equals to the power of 51 straight C subscript 12 plus to the power of 51 straight C subscript 13 minus to the power of 52 straight C subscript 13 equals to the power of 52 straight C subscript 12 minus to the power of 52 straight C subscript 13 equals 0
Hence comma space to the power of 50 straight C subscript 11 plus to the power of 50 straight C subscript 12 plus to the power of 51 straight C subscript 13 minus to the power of 52 straight C subscript 13 equals 0
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