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Case Study-2: Radha decorated the door...

Case Study-2:
Radha decorated the door of her house with garlands on the occassion of Diwali. Each garland forms the shape of a parabola as shown in the figure.

A quadratic polynomial with the sum and product of its zeroes as 1 and -2 respectively, is:

A

`x^2+x-2`

B

`x^2-x-2`

C

`x^2+2x-1`

D

`x^2-2x-1`

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