Class 11MathematicsTrigonometrical Ratios, Functions and IdentitiesMix Examples-Trigonometrical Ratios, Functions and Identities
Difficultકિંમત શોધો: $(\cos 252^{\circ} - \sin 126^{\circ})(\cos 252^{\circ} + \sin 126^{\circ})(\sin^2 126^{\circ} + \sin^2 186^{\circ} + \sin^2 66^{\circ})$
- A$\frac{3 \sqrt{5}}{8}$
- B$\frac{-3 \sqrt{5}}{8}$
- C$\frac{-3 \sqrt{5}}{4}$
- D$\frac{3 \sqrt{5}}{4}$
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જો $A$ અને $B$ લઘુકોણ હોય જે $3 \cos ^2 A + 2 \cos ^2 B = 4$ અને $\frac{3 \sin A}{\sin B} = \frac{2 \cos B}{\cos A}$ નું સમાધાન કરે,તો $A + 2B =$ ($^{\circ}$ માં)
જો $\sin A+\sin B=\sqrt{3}(\cos B-\cos A)$ હોય,તો $\sin 3A+\sin 3B$ ની કિંમત શોધો.
DifficultAP EAMCET 2007
View Solutionજો $\sin x+\sin ^2 x=1$,જ્યાં $x \in\left(0, \frac{\pi}{2}\right)$,તો $(\cos ^{12} x+\tan ^{12} x)+3(\cos ^{10} x+\tan ^{10} x+\cos ^8 x+\tan ^8 x)+(\cos ^6 x+\tan ^6 x)$ ની કિંમત શોધો.
DifficultJEE MAIN 2025
View Solutionજો $\alpha = \frac{\sin^3 x}{\cos^2 x}$,$\beta = \frac{\cos^3 x}{\sin^2 x}$ અને $\sin x + \cos x = k$ હોય,તો $\alpha \sin x + \beta \cos x + 3 = $
જો $\tan {3^o} + 2\tan {6^o} + 4\tan {12^o} + 8\cot {24^o} = \cot {\theta ^o}$ હોય,તો:
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