જો $f(x)=3 x^{15}-5 x^{10}+7 x^5+50 \cos (x-1)$ હોય,તો $\lim _{h \rightarrow 0} \frac{f(1-h)-f(1)}{h^3+3 h}=$

  • A
    -$25$
  • B
    $25$
  • C
    -$10$
  • D
    $10$

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જો $f$ એ ચુસ્ત રીતે વધતું વિધેય હોય,તો $\mathop {\lim }\limits_{x \to 0} \frac{{f({x^2}) - f(x)}}{{f(x) - f(0)}}$ ની કિંમત શોધો.

$\mathop {\lim }\limits_{\alpha \to \pi /4} \frac{{\sin \alpha - \cos \alpha }}{{\alpha - \frac{\pi }{4}}} = $

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જો $f(x)$ એ $x$ નું વિકલનીય વિધેય હોય,તો $\mathop {Limit}\limits_{h \to 0} \frac{f(x + 3h) - f(x - 2h)}{h} = $

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