हिंदी

If one zero of the polynomial x^2 – 4x + 1 is (2 + sqrt(3)), write the other zero.

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प्रश्न

If one zero of the polynomial x2 – 4x + 1 is `(2 + sqrt(3))`, write the other zero.

योग
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उत्तर

Let the other zeroes of x2 – 4x + 1 be a.

By using the relationship between the zeroes of the quadratic polynomial. 

We have, sum of zeroes = `(-("Coefficient of"  x))/(("Coefficient of"  x^2))` 

∴ `2 + sqrt(3) + a = -((-4))/1` 

⇒ `a = 2 - sqrt(3)` 

Hence, the other zeroes of x2 – 4x + 1 is `(2 - sqrt(3))`.

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अध्याय 2: Polynomials - EXERCISE 2C [पृष्ठ ६५]

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आर.एस. अग्रवाल Mathematics [English] Class 10
अध्याय 2 Polynomials
EXERCISE 2C | Q 1. | पृष्ठ ६५

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