Class 11MathematicsTrigonometrical Ratios, Functions and IdentitiesMix Examples-Trigonometrical Ratios, Functions and Identities
Easyજો $\cos x + \cos^2 x = 1$ હોય,તો $\sin^2 x + \sin^4 x$ ની કિંમત કેટલી થાય?
- A$-1$
- B$1$
- C$0$
- D$2$
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જો $A$ અને $B$ ધન 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 છે,તો $A + 2B =$ ($^{\circ}$ માં)
DifficultAP EAMCET 2025
View Solutionજો $\operatorname{Sinh}^{-1} x = \operatorname{Cosh}^{-1} y = \log(1+\sqrt{2})$ હોય, તો $\operatorname{Tan}^{-1}(x+y) = $
જો $A = \frac{\sin 3^\circ}{\cos 9^\circ} + \frac{\sin 9^\circ}{\cos 27^\circ} + \frac{\sin 27^\circ}{\cos 81^\circ}$ અને $B = \tan 81^\circ - \tan 3^\circ$ હોય, તો $\frac{B}{A}$ ની કિંમત . . . . . . થાય.
DifficultJEE MAIN 2026
View Solutionજો $0 < \theta < \frac{\pi}{4}$ અને $8 \cos \theta + 15 \sin \theta = 15$ હોય,તો $15 \cos \theta - 8 \sin \theta = $
$\cos \frac{2\pi}{28} \csc \frac{3\pi}{28} + \cos \frac{6\pi}{28} \csc \frac{9\pi}{28} + \cos \frac{18\pi}{28} \csc \frac{27\pi}{28}$ નું ચોક્કસ મૂલ્ય શું છે?
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