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If one root of the quadratic equation is 3 – 2√5 , then write another root of the equation. - Algebra

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Question

If one root of the quadratic equation is `3 – 2sqrt5` , then write another root of the equation.

Solution

One root of the quadratic equation is given to be `3 – 2sqrt5`

The other root will be the conjugate of `3 – 2sqrt5

conjugate of `3 – 2sqrt5=3 + 2sqrt5`

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2016-2017 (March) Set A

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