9th Class Mathematics Sample Paper Maths Olympiad Model Test Paper-12

  • question_answer
    For any acute angle\[\theta \], which one of the following relation is incorrect?

    A)  \[\tan \theta =\frac{\sin \theta }{\cos \theta }\]    

    B)  \[{{\sec }^{2}}q-{{\tan }^{2}}q=1\]

    C)  \[\tan q\cot q=1\]         

    D)  \[\sec q\tan q=1\]

    E)  None of these

    Correct Answer: D

    Solution :

     Not Available


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