1

JEE Main 2022 (Online) 25th July Evening Shift

MCQ (Single Correct Answer)

+4

-1

$$2 \sin \left(\frac{\pi}{22}\right) \sin \left(\frac{3 \pi}{22}\right) \sin \left(\frac{5 \pi}{22}\right) \sin \left(\frac{7 \pi}{22}\right) \sin \left(\frac{9 \pi}{22}\right)$$ is equal to :

2

JEE Main 2022 (Online) 28th June Evening Shift

MCQ (Single Correct Answer)

+4

-1

If cot$$\alpha$$ = 1 and sec$$\beta$$ = $$ - {5 \over 3}$$, where $$\pi < \alpha < {{3\pi } \over 2}$$ and $${\pi \over 2} < \beta < \pi $$, then the value of $$\tan (\alpha + \beta )$$ and the quadrant in which $$\alpha$$ + $$\beta$$ lies, respectively are :

3

JEE Main 2022 (Online) 27th June Evening Shift

MCQ (Single Correct Answer)

+4

-1

$$\alpha = \sin 36^\circ $$ is a root of which of the following equation?

4

JEE Main 2022 (Online) 27th June Morning Shift

MCQ (Single Correct Answer)

+4

-1

The value of $$\cos \left( {{{2\pi } \over 7}} \right) + \cos \left( {{{4\pi } \over 7}} \right) + \cos \left( {{{6\pi } \over 7}} \right)$$ is equal to :

Questions Asked from Trigonometric Ratio and Identites (MCQ (Single Correct Answer))

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