Tuesday, December 14, 2010

Question 21

The period of 2 sin x cos x is 

A. 4 pi 2
B. 2 pi
C. 4 pi
D. pi
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5 comments:

  1. ishanDecember 14, 2010 at 2:21 AM

    answer-option D.

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  2. UnknownJuly 9, 2013 at 10:28 PM

    D

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  3. ankitJanuary 13, 2014 at 3:12 AM

    can you give explaination for this question????

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    Replies
    1. UnknownApril 2, 2014 at 3:51 AM

      This comment has been removed by the author.

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  4. UnknownApril 2, 2014 at 3:58 AM

    Ans D becous of 2sin(x)cos(x)=sin(2x) It is trigonometric periodic function and period is 2pi/T where T=2 then period is pi.

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