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Suppose you expand the product (x1+ y1) (x2 + y2).. .(x20 + Y20). How many terms will have only one x and rest ys?

1. 1 2. 5

3. 10 4. 20

Kailash Choudhary , 12 Years ago
Grade
anser 2 Answers
Bevkoof Singh

i think 3 one is correct one

Last Activity: 12 Years ago
jitender lakhanpal

ans   is option 4 

PFA FOR THE FOR EXPLANATION

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Last Activity: 12 Years ago
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