JEE Main & Advanced Mathematics Trigonometric Equations Question Bank Numerical Value Type Questions - Trigonometric Equation

  • question_answer If \[{{\sin }^{4}}x-{{\cos }^{2}}x\,\,\sin x+2{{\sin }^{2}}x+\sin x=0,\] \[\forall \,\,x\,\,\in \,\,\left[ 0,3\pi  \right]\] then find number of solutions.

    Answer:

    4.00


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