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If ∑(r=1 to k) cos -1 beta r =k.pi/2 for any k>=1 and A=∑(r=1 to k)(beta r ) r ,then lim(x tends to A) {(1+x) 1/3 -(1-2x) ¼ }/x+x 2 is equal to 1.0 2.1/2 3.pi/2 4.5/2 _____problem image attached...

If ∑(r=1 to k) cos-1 betar=k.pi/2 for any k>=1 and A=∑(r=1 to k)(betar)r,then
lim(x tends to A) {(1+x)1/3-(1-2x)¼}/x+xis equal to
 
1.0
2.1/2
3.pi/2
4.5/2
_____problem image attached...

Question Image
Grade:12

1 Answers

Rituraj Tiwari
askIITians Faculty 1792 Points
9 months ago
657-1433_Annotation 2020-07-25 150142.png

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