DOUBT 6

The value of 2*a and 2*b such that (where a and b satisfies)

Ltx-->0 x(1+acosx)-b sinx =1
-------------------------
x3

a. 5,3

b. 5,-3

c.-5,-3

d.NOT

3 Answers

11
Mani Pal Singh ·

use the expansions
sinx=x-x3/3!+.........
cosx=1-x2/2!+x4/4!

1
°ღ•๓яυΠ·

d

use l'pithal

1
sriraghav ·

k...forgot l'hospitals for tis Q....[4]

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