Class 11MathematicsTrigonometrical Ratios, Functions and IdentitiesFundamental trigonometrical ratios and functions, Trigonometrical ratio of allied angles
Easy$\cos \theta(\operatorname{cosec} \theta - \sec \theta) - \cot \theta =$
- A$-1$
- B$1$
- C$0$
- D$\cos^2 \theta - \tan^2 \theta$
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$\operatorname{cosec} 15^{\circ} + \sec 15^{\circ}$ ની કિંમત શોધો:
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View Solutionજો $\sin \theta = -\frac{1}{\sqrt{2}}$ અને $\tan \theta = 1$ હોય,તો $\theta$ કયા ચરણમાં આવે છે?
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View Solution$\cos 1^\circ \cdot \cos 2^\circ \cdot \cos 3^\circ \cdot \dots \cdot \cos 179^\circ = $
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View Solutionજો $A, B, C, D$ એ ચક્રીય ચતુષ્કોણના ક્રમમાં લીધેલા ખૂણાઓ હોય,તો $\cos(180^{\circ} + A) + \cos(180^{\circ} - B) + \cos(180^{\circ} - C) - \sin(90^{\circ} - D) =$
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