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2sin 60^(@)-cos180^(@)+(1//3)sin270^(@)=...

`2sin 60^(@)-cos180^(@)+(1//3)sin270^(@)=`A)`sqrt2+(3)/(2)` B)`sqrt3+(2)/(3)` C)`sqrt2-(3)/(2)` D)`sqrt3-(2)/(3)`

A

`sqrt2+(3)/(2)`

B

`sqrt3+(2)/(3)`

C

`sqrt2-(3)/(2)`

D

`sqrt3-(2)/(3)`

Text Solution

Verified by Experts

The correct Answer is:
B
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MARVEL PUBLICATION-TRIGONOMETRIC FUNCTIONS-MCQs
  1. prove that: 4 cot^2(45^ @) - sec^2(60^ @)+ sin^2(30^ @) = 1/8

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  2. [(1-tan^(2)30^(@))div(1+tan^(2)30^(@))]-sin30^(@)=A)-1 B)0 C)1 D)2

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  3. 2sin 60^(@)-cos180^(@)+(1//3)sin270^(@)=A)sqrt2+(3)/(2) B)sqrt3+(2)/(3...

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  8. If tan theta=-4//5 and theta is not is the second quadrant, then : cs...

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  9. If cos theta=-1//2 and pi lt theta lt (3pi//2), "then" : 4 tan^(2)the...

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  12. If sin theta = 4//5, where pi//2 lt theta lt pi, evaluate : (sec th...

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  13. If tan theta = - 3//5 and theta is not in the second quadrant, find t...

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  14. If x=sin^(2)theta+3 cos theta-2=0, "then" : cos^(3)theta + sec^(3)thet...

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  15. If x= sin^(2)theta* cos theta and y=sin theta cos^(2)theta,"then" :

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  16. If sin x + cos x = sqrt2 * c os x, "then : cos x - sin x = ......A)sq...

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  17. If xsin45^@cos^2(60^@)=(tan^2(60^@)cosec30^@)/(sec45^@cot^2(30^@)), t...

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