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https://drive.google.com/file/d/18JUlO1z_GEMLHAL3oQ55oh8daLB02aEu/view?usp=drivesdk The question is in the image above in link please someone solve it

    • Posted by Satyam Kumar 4 years ago

    CBSE > Class 09 > Mathematics
    • 2 answers

    Satyam Kumar 4 years ago

    Factorise a^2+a+1/4-a-1/2

    0Thank You

    Gaurav Seth 4 years ago

    bac​ = y as they are corresponding angles since ac is parallel to de
    then,
    cda=90 (as my assumption) cdg+y+25=90
     
    cdg+20+25=90; cdg=45
    cdg+20 i mean 45 +20 =65=acd (alternate angles)
     
    x+acd=180 (linear pair)
    x+65=180
    x=115

    1Thank You

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