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Home  >>  CBSE XI  >>  Math  >>  Trigonometric Functions
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Which of the following is not correct ?

$\begin{array}{1 1}(A)\;\sin \theta=-\large\frac{1}{5}&(B)\;\cos \theta=1\\(C)\;\sec\theta=\large\frac{1}{2}&(D)\;\tan \theta=20\end{array} $

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1 Answer

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$\sec\theta=\large\frac{1}{2}$ is not exist
Hence (C) is the correct answer.
answered May 20, 2014 by sreemathi.v
 
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