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If the sum of the roots of the equation `x^2-x=K(2x-1)` is zero, then find the value of K.

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UNITED BOOK HOUSE-BIDHANNAGAR GOVT, HIGH SCHOOL-EXERCISE
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  10. Solve: x/(x+1)+(x+1)/x= 2 1/12(x!=0,-1)

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  11. If a two digit positive number is multiplied by its unit digit, then t...

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  12. If x= sqrt3+sqrt2 ,find the value of x^3-1/x^3.

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  13. If x/y alphax+y and y/x alpha x-y, then show that x^2-y^2= constant.

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  14. If 1/(b+c)+1/(c+a) = 2/(a+b) , show that a^2+b^2=2c^2,

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  15. If a+b+c= 0 prove that 1/(2a^2+bc)+1/(2b^2+ca)+1/(2c^2+ab)=0

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