જો $\frac{2 \sin \alpha}{1+\cos \alpha+\sin \alpha}=x$ હોય,તો $\frac{1-\cos \alpha-\sin \alpha}{\cos \alpha}=$

  • A
    $\frac{1}{x}$
  • B
    $-x$
  • C
    $1-x$
  • D
    $1+x$

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જો કાટકોણ ત્રિકોણની બાજુઓ ${cos2\alpha + cos2\beta + 2cos(\alpha + \beta )}$ અને ${sin2\alpha + sin2\beta + 2sin(\alpha + \beta )}$ હોય,તો કર્ણની લંબાઈ શોધો:

જો $\tanh x = \frac{1}{2}$ હોય,તો $\sinh 2x - \text{sech } 2x = $

${e^{\log_{10} \tan 1^\circ + \log_{10} \tan 2^\circ + \log_{10} \tan 3^\circ + \dots + \log_{10} \tan 89^\circ}}$ ની કિંમત શોધો.

જો $\sin A+\sin B=\sqrt{3}(\cos B-\cos A)$ હોય,તો $\sin 3A+\sin 3B$ ની કિંમત શોધો.

જો $\frac{3\pi}{4} < \alpha < \pi$ હોય,તો $\sqrt{\csc^2 \alpha + 2\cot \alpha}$ ની કિંમત કેટલી થાય?

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