જો $\tan A$ અને $\tan B$ એ દ્વિઘાત સમીકરણ $x^2-px+q=0$ ના બીજ હોય,તો $\sin^2(A+B)$ ની કિંમત શું થાય?

  • A
    $\frac{p^2}{p^2+q^2}$
  • B
    $\frac{p^2}{(p+q)^2}$
  • C
    $1-\frac{p}{(1-q)^2}$
  • D
    $\frac{p^2}{p^2+(1-q)^2}$

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જો $(\sec \alpha + \tan \alpha )(\sec \beta + \tan \beta )(\sec \gamma + \tan \gamma ) = \tan \alpha \tan \beta \tan \gamma $ હોય,તો $(\sec \alpha - \tan \alpha )(\sec \beta - \tan \beta )(\sec \gamma - \tan \gamma ) = $

જો $\cos \left(\frac{\pi}{4}-x\right) \cos 2 x+\sin x \sin 2 x \sec x = \cos x \sin 2 x \sec x+\cos \left(\frac{\pi}{4}+x\right) \cos 2 x$ હોય,તો $\sec x$ ની શક્ય કિંમત કઈ છે?

$\sin 20^{\circ}(4+\sec 20^{\circ})=$

જો $\sin^{2}(10^{\circ}) \sin(20^{\circ}) \sin(40^{\circ}) \sin(50^{\circ}) \sin(70^{\circ}) = \alpha - \frac{1}{16} \sin(10^{\circ})$ હોય,તો $16 + \alpha^{-1}$ ની કિંમત શોધો.

$\frac{1}{\sin 1^{\circ} \sin 2^{\circ}}+\frac{1}{\sin 2^{\circ} \sin 3^{\circ}}+\frac{1}{\sin 3^{\circ} \sin 4^{\circ}}+\ldots+\frac{1}{\sin 89^{\circ} \sin 90^{\circ}} = ?$

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