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Grade 11Algebra

Please solve q.24 and q.25.

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Profile image of Sumukh M Lohit
10 Years agoGrade 11
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1 Answer

Profile image of Sourabh Singh
10 Years ago
24 b)

Its nothing but summation of 1.
then it summation of first i natural numbers
Then you have to apply summation to the general term of the expansion