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Which of the following are quadratic e...

Which of the following are quadratic equations? `(i) x-3/x=x^2` (ii) `2x^2-sqrt(3)x+9=0` (iii) `x^2-2x-sqrt(x)-5=0`

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RD SHARMA ENGLISH-QUADRATIC EQUATIONS-All Questions
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  2. Which of the following are quadratic equations? x^2+6x-4=0 (ii) sqr...

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  3. Which of the following are quadratic equations? (i) x-3/x=x^2 (ii) 2...

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  4. Which of the following are quadratic equations? 3x^2-5x+9=x^2-7x+3 ...

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  5. Which of the following are quadratic equations? (i)(x+1/x)^2=3(x+1...

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  6. Which of the following are quadratic equations? (i)16 x^2-3=(2x+5)...

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  7. In each of the following, determine whether the given values are sol...

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  8. In each of the following, determine whether the given values are sol...

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  9. In each of the following, find the value of k for which the given ...

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  10. In each of the following, find the value of k for which the given ...

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  11. Determine, if 3 is a root of the equation given below: sqrt(x^2-4x+...

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  13. The area of a rectangular plot is 528\ m^2 . The length of the p...

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  14. Rohan’s mother is 26 years older than him. The product of their age...

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  15. A train travels a distance of 480 km at a uniform speed. If the spe...

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  16. The product of two consecutive positive integers is 306. Form the q...

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  17. John and Jivanti together have 45 marbles. Both of them lost 5 marb...

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  18. A cottage industry produces a certain number of toys in a day. The ...

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  19. The height of a right triangle is 7cm less than its base. If the hy...

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  20. A train travels 360 km at a uniform speed. If the speed had been 5k...

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