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Number of values of x in [0, 4pi] and sa...

Number of values of `x in [0, 4pi]` and satisfying the equation `sin x+cosx=3//2` is :

A

0

B

1

C

2

D

4

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The correct Answer is:
a
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MCGROW HILL PUBLICATION-TRIGONOMETRICAL IDENTITIES AND EQUATIONS -EXERCISE (Concept-based Single Correct Answer Type Questions )
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  12. If 0 lt theta lt pi//8, then sqrt(2+sqrt(2+2cos(4theta))) is equal to...

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  13. Let f(theta)=cos theta cos 2 theta cos 4 theta cos 7 theta, then f(pi/...

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  14. Let f(theta)=sin theta sin 3 theta sin 5 theta, then f(pi//14) is equa...

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  15. If A+B+C=pi//2, then sin^(2)A+sin^(2)B+sin^(2)C+2sinA sinB sinC is ...

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  16. Number of values of x lying in the interval [0, 4pi] and satisfying t...

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  17. Number of values of x lying in the interval [0, 5pi] and satisfying th...

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  18. Number of values of x in [0, 4pi] and satisfying the equation sin x+c...

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  19. Number of value of x in [0, 5pi] and satisfying sin^(2)x=cos^(2)x is ...

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  20. For 0 lt theta lt pi//4, (sec (8theta)-1)/(sec(4theta)-1)*(tan(2theta)...

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