Consider \( f(x)=\frac{\sin x+a e^{x}+b e^{-x}+c \ln (1+x)}{x^{3}} \), where
\( a, b, c \) are r.... VIDEO
Consider \( f(x)=\frac{\sin x+a e^{x}+b e^{-x}+c \ln (1+x)}{x^{3}} \), where
\( \mathrm{P} \)
\( a, b, c \) are real number.
Using the value of \( a, b, c \) as found in Q.NO. 13 or Q. No. 14 above, the value of \( \lim _{x \rightarrow 0^{+}} x f(x) \) is
(A) 0
(B) \( \frac{1}{2} \)
(C) \( -\frac{1}{2} \)
(D) 2
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