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SSC Sample Paper SSC CHSL (10+2) Sample Test Paper-7

  • question_answer
    The value of cosec2 \[32{}^\circ \] - tan2 \[58{}^\circ \] is                       

    A)  0                                

    B)  2

    C)  \[-1\]               

    D)         1

    Correct Answer: D

    Solution :

     Expression \[=cose{{c}^{2}}\text{ }32{}^\circ -ta{{n}^{2}}\text{ }58{}^\circ \] \[=cose{{c}^{2}}\left( 90{}^\circ -58{}^\circ  \right)-ta{{n}^{2}}\text{ }58{}^\circ \] \[=se{{c}^{2}}\text{ }58{}^\circ -ta{{n}^{2}}\text{ }58{}^\circ =1\]


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