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  5. Some Applications of Trigonometry

10th Class Mathematics Some Applications of Trigonometry Question Bank Trigonometry and Its Application

  • question_answer
    If \[Cos\theta -Sin\,\theta =\sqrt{2}\sin \theta ,\] then \[Cos\theta +Sin\,\theta \] is equal to _____

    A)  Cos\[\theta \]                                                                

    B)  2 Cos\[\theta \]      

    C)  \[\sqrt{2}\]Cos\[\theta \]             

    D) 2\[\sqrt{2}\]COS\[\theta \]

    E) None of these

    Correct Answer: C

    Solution :

    Not Available                          


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