જો $y = \frac{1}{a - z}$ હોય,તો $\frac{dz}{dy} = $

  • A
    $(z - a)^2$
  • B
    $-(z - a)^2$
  • C
    $(z + a)^2$
  • D
    $-(z + a)^2$

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$(B)\ \sin (180^{\circ}-\theta)=\cos (90^{\circ}-\theta)$
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વક્ર $y = \ln(\cos x)$ માટે $x = \frac{3\pi}{4}$ આગળ સ્પર્શકનો ઢાળ કેટલો થાય?

જો $log_{10} (xy) = 2$ હોય,તો $xy$ ની કિંમત શું થાય?

$1+\frac{1}{4}+\frac{1}{16}+\frac{1}{64}+\ldots$ અનંત સુધીનું મૂલ્ય શું છે?

${d \over {dx}}({x^2}{e^x}\sin x) = $

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