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Plz solve the question in the attachment which is from R D Sharma VSAQ

Plz solve the question in the attachment which is from R D Sharma VSAQ 

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Grade:11

1 Answers

Rajat
213 Points
3 years ago
| x|
 y is an infinite GP with common ratio x and -1
Thus y = a/(1-r) = 1/(1-x)
So, dy/dx = d(1/(1-x))/dx= {(-1)/(1-x)2}(-1)= 1/(1-x)2

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