10th Class Mathematics Introduction to Trigonometry Question Bank MCQs - Introduction to Trigonometry

  • question_answer
    The value of \[({{\tan }^{2}}60{}^\circ +{{\sin }^{2}}45{}^\circ )\]is:

    A) \[\frac{1}{2}\]

    B) \[\frac{3}{2}\]

    C) \[\frac{5}{2}\]

    D) \[\frac{7}{2}\]

    Correct Answer: D

    Solution :

    [d]\[{{\tan }^{2}}60{}^\circ +{{\sin }^{2}}45{}^\circ ={{(\sqrt{3})}^{2}}+{{\left( \frac{1}{\sqrt{2}} \right)}^{2.}}=3+\frac{1}{2}=\frac{7}{2}\]


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