$\cos\, 120^{\circ}$ का मान ..... होता है।

  • A
    $0$
  • B
    $1$
  • C
    $-1$
  • D
    $-0.5$

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Difficult
View Solution

$\frac{d}{dx} \log(\log x) = $

$\frac{d}{dx} {\left( \sqrt{x} + \frac{1}{\sqrt{x}} \right)}^2$ का मान ज्ञात कीजिए।

$\frac{d}{dx}(\sin 30^\circ)$ का मान किसके बराबर है?

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