Find how many rounds of differentiation are required to have finite limit for (lt_{x rightarrow 0} frac{cos(ax)+cos(bx)-2cos(cx)}{cos(ax)+2cos(bx)-3cos(cx)} ) given that a b c

Find how many rounds of differentiation are required to have finite li

1.	Find how many rounds of differentiation are required to have finite limit for (lt_{x rightarrow 0} frac{cos(ax)+cos(bx)-2cos(cx)}{cos(ax)+2cos(bx)-3cos(cx)} ) given that a b c
A.	3
B.	0
C.	2
D.	4
Answer» D. 4

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