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March 25, 2017

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if theta = 45, the value of cosec ^ 2 theta is ?

  • maths trigonometry - ,

    cosec(theta)=1/sin(theta)

    sin(45°)= sqrt(2)/2= 1/sqrt(2)


    cosec(45°)=1/[1/sqrt(2)]


    cosec(45°)=sqrt(2)

    cosec^2(45°)=[sqrt(2)]^2= 2

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