જો $\frac{\sin^4 A}{a} + \frac{\cos^4 A}{b} = \frac{1}{a + b}$ હોય,તો $\frac{\sin^8 A}{a^3} + \frac{\cos^8 A}{b^3}$ ની કિંમત કેટલી થાય?

  • A
    $\frac{1}{(a + b)^3}$
  • B
    $\frac{a^3 b^3}{(a + b)^3}$
  • C
    $\frac{a^2 b^2}{(a + b)^2}$
  • D
    આમાંથી કોઈ નહીં

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$5 \sin^2 \theta + 4 \cos^2 \theta$ ની ન્યૂનતમ કિંમત શું છે?

$(cos^{2}\theta - 6sin\theta cos\theta + 3sin^{2}\theta + 2)$ ની ન્યૂનતમ કિંમત શોધો:

જો $10 \sin^4 \alpha + 15 \cos^4 \alpha = 6$ હોય,તો $16 \tan^6 \alpha + 27 \cot^6 \alpha =$ શું થાય?

જો $A = \sin^2 x + \cos^4 x$ હોય,તો તમામ વાસ્તવિક $x$ માટે :

જો $P+Q+R=\frac{\pi}{4}$,હોય તો $\cos \left(\frac{\pi}{8}-P\right)+\cos \left(\frac{\pi}{8}-Q\right)+\cos \left(\frac{\pi}{8}-R\right)=$

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