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JEE Main & Advanced Mathematics Trigonometric Identities Question Bank Mock Test - Trigonometric Functions

  • question_answer
    IF\[2{{\sin }^{2}}((\pi /2)co{{s}^{2}}x)=1-cos(\pi sin2x),\]\[x\ne (2n+1)\pi /2\],\[n\in I\], then cos 2x is equal to__.

    Answer:

    0.6


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