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JEE Main & Advanced Sample Paper JEE Main - Mock Test - 29

  • question_answer
    If \[\sin \,x+{{\sin }^{2}}x+\,\,si{{n}^{3}}x=1\], then \[{{\cos }^{6}}x\,-4\,co{{s}^{4}}x\,+\,\,8\,\,co{{s}^{2}}x=\]

    Answer:

    (4)


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