જો $\sin \theta + \text{cosec} \theta = 2$ હોય,તો $\sin^2 \theta + \text{cosec}^2 \theta = $

  • A
    $1$
  • B
    $4$
  • C
    $2$
  • D
    આમાંથી કોઈ નહીં

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$x \in [0, 2\pi]$ માટે $|\sqrt{2 \sin^4 x + 18 \cos^2 x} - \sqrt{2 \cos^4 x + 18 \sin^2 x}| = 1$ હોય તેવી $x$ ની સંખ્યા શોધો.

જો $\cos \theta = \frac{\cos \alpha - \cos \beta}{1 - \cos \alpha \cos \beta}$ હોય,તો $\tan \frac{\theta}{2}$ ની એક કિંમત શું થાય?

જો $A+B+C+D=2 \pi$ હોય,તો $\cos A-\cos B+\cos C-\cos D=$

જો $y^2+z^2=3yz$,$z^2+x^2=8zx$,અને $x^2+y^2=4xy$ હોય,તો $\frac{y^2}{xz}+\frac{xz}{y^2}$ ની કિંમત શોધો.

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