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  3. 11th Class
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11th Class Mathematics Sample Paper Maths Olympiad Model Paper-2

  • question_answer
    The value of \[{{\sin }^{2}}5{}^\circ +{{\sin }^{2}}10{}^\circ +{{\sin }^{2}}15{}^\circ \]\[+.......+{{\sin }^{2}}85{}^\circ +{{\sin }^{2}}90{}^\circ \] is equal to

    A)  \[7\frac{1}{2}\]                        

    B)  8

    C)  9                                

    D)  \[9\frac{1}{2}\]

    E)  None of these

    Correct Answer: D

    Solution :

     Not Available


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