$\sec ^{2} 12^{\circ}-\frac{1}{\tan ^{2} 78^{\circ}}$ ની કિંમત શોધો.

  • A
    $0$
  • B
    $1$
  • C
    $2$
  • D
    $3$

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$\cos^2 A(3 - 4\cos^2 A)^2 + \sin^2 A(3 - 4\sin^2 A)^2 = $

પદાવલિ $2(\sin^6 \theta + \cos^6 \theta) - 3(\sin^4 \theta + \cos^4 \theta) + 1$ નું મૂલ્ય કેટલું થાય?

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