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  3. JEE Main & Advanced

JEE Main & Advanced Sample Paper JEE Main - Mock Test - 31

  • question_answer
    If \[f(x)=\int{2{{e}^{x}}\,\,{{\cos }^{2}}x(-{{\tan }^{2}}x+\tan x+1)dx}\]and \[f(\pi )=0,\] then \[f'(0)=\] _____.

    Answer:

    2


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