જો $90^\circ < A < 180^\circ$ અને $\sin A = \frac{4}{5}$ હોય,તો $\tan \frac{A}{2}$ ની કિંમત શોધો.

  • A
    $1/2$
  • B
    $3/5$
  • C
    $3/2$
  • D
    $2$

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Similar Questions

${\left( {\frac{{\cos A + \cos B}}{{\sin A - \sin B}}} \right)^n} + {\left( {\frac{{\sin A + \sin B}}{{\cos A - \cos B}}} \right)^n}$ ($n$ એકી કે બેકી છે) $=$

જો $\tan \alpha = \frac{1}{7}$ અને $\sin \beta = \frac{1}{\sqrt{10}}$ જ્યાં $0 < \alpha, \beta < \frac{\pi}{2}$ હોય,તો $2\beta$ ની કિંમત શોધો:

$\sqrt{\frac{1+\cos \theta}{1-\cos \theta}}+\sqrt{\frac{1-\cos \theta}{1+\cos \theta}}=$

જો $\cos A = \cos B \cos C$ અને $A + B + C = \pi$ હોય,તો $\cot B \cot C$ ની કિંમત શોધો.

જો $\alpha + \beta + \gamma = 2\pi$ હોય,તો

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