Class 11MathematicsTrigonometrical Ratios, Functions and IdentitiesMix Examples-Trigonometrical Ratios, Functions and Identities
Mediumयदि $\tan A+\tan B+\cot A+\cot B=\tan A \tan B-\cot A \cot B$ और $0^{\circ} < A+B < 270^{\circ}$ है,तो $A+B=$ ($^{\circ}$ में)
- A$45$
- B$135$
- C$150$
- D$225$
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Similar Questions
$\tan 40^{\circ} + \tan 11^{\circ} + \tan 20^{\circ} - \tan 56^{\circ} + \tan 56^{\circ} \tan 11^{\circ} + \sqrt{3} \tan 40^{\circ} \tan 20^{\circ}$ का मान है
$\cos^{3}\left(\frac{\pi}{8}\right) \cdot \cos\left(\frac{3\pi}{8}\right) + \sin^{3}\left(\frac{\pi}{8}\right) \cdot \sin\left(\frac{3\pi}{8}\right)$ का मान ज्ञात कीजिए।
DifficultJEE MAIN 2020
View Solution$(\sec A + \tan A - 1)(\sec A - \tan A + 1) - 2\tan A = $
Easy
View Solutionयदि $\tan B = \frac{n \sin A \cos A}{1 - n \cos^2 A}$ है,तो $\tan(A + B)$ का मान ज्ञात कीजिए।
$4 \cos \frac{7 \theta}{2} \cos \frac{3 \theta}{2} \sin 5 \theta = $
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