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tan^-(x+1)+tan^-(x-1)=tan^-8/31

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tan^-(x+1)+tan^-(x-1)=tan^-8/31

    • Posted by Utsav Thakur 6 years, 4 months ago

    CBSE > Class 12 > Mathematics
    • 2 answers

    Abhay Gupta 6 years, 4 months ago

    by using formula tan^-1 +tan^-1 ,tain^-1 will remove and the equ will be 2x=62- 31x^2

    0Thank You

    Dolly ?️ 6 years, 4 months ago

    Tan^-1(2x/1-x^2) =tan^-1(8/31) 8-8x^2=62x 8x^2-62x+8=0 Now solve it easily

    0Thank You

    ANSWER
    http://mycbseguide.com/examin8/

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