જો $\lim _{x \rightarrow 0} \frac{\alpha e^{x}+\beta e^{-x}+\gamma \sin x}{x \sin ^{2} x}=\frac{2}{3}$,જ્યાં $\alpha, \beta, \gamma \in R$,તો નીચેનામાંથી કયું સાચું $NOT$ છે?

  • A
    $\alpha^{2}+\beta^{2}+\gamma^{2}=6$
  • B
    $\alpha \beta+\beta \gamma+\gamma \alpha+1=0$
  • C
    $\alpha \beta^{2}+\beta \gamma^{2}+\gamma \alpha^{2}+3=0$
  • D
    $\alpha^{2}-\beta^{2}+\gamma^{2}=4$

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