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SSC Sample Paper Mock Test-20 SSC CGL Tear-II Paper-1

  • question_answer
    If \[\phi \]and \[\theta \] are supplementary angles, then

    A)  \[\sin \theta =\sin \phi \]

    B)         \[\cos \theta =\cos \phi \]

    C)  \[\tan \theta =\tan \phi \]           

    D)  \[\sec \phi =\text{cosec}\theta \]

    Correct Answer: A

    Solution :

    \[\phi +\theta =180{}^\circ \]\[\Rightarrow \]\[\theta =180{}^\circ -\phi \] \[\sin \theta =\sin \,\,(180{}^\circ -\phi )\] \[\sin \theta =\sin \phi \]


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