$\sin 2A = 2 \sin A$ ત્યારે સત્ય છે જ્યારે $A =$ ($^{\circ}$ માં)

  • A
    $60$
  • B
    $30$
  • C
    $45$
  • D
    $0$

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જો $\sin ( A - B ) = \frac{1}{2}$,$\cos ( A + B ) = \frac{1}{2}$,$0^{\circ} < A + B \leq 90^{\circ}$ અને $A > B$ હોય,તો $A$ અને $B$ શોધો.

$\frac{2 \tan 30^{\circ}}{1+\tan ^{2} 30^{\circ}} = ?$

$\frac{\sin 60^{\circ} + \cos 30^{\circ}}{1 + \sin 30^{\circ} + \cos 60^{\circ}} = \dots$

જો $\sin \alpha = \frac{1}{2}$ અને $\cos \beta = \frac{1}{2}$ હોય,તો $(\alpha + \beta)$ નું મૂલ્ય શું થાય ($^{\circ}$ માં)?

કાટકોણ $\Delta ABC$ માં,$m\angle B = 90^\circ$ છે. જો $AC = 20$ અને $m\angle C = 30^\circ$ હોય,તો $BC = \ldots$

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