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mediumNATPYQs Based test 26: Engineering MathematicsElectrical Engineering
1 mark

Let y² – 2y + 1 = x and . The value of equals ________. (Give the answer up to three decimal places)

Correct Answer

5.7-5.8

Solution & Step-by-step Explanation

y² – 2y + 1 = x





⇒ x = (5 - y)²

⇒ y² – 2y + 1 = (5 – y)²

⇒ y² – 2y + 1 = 25 + y² – 10y

⇒ 8y = 24 ⇒ y = 3

x = (5 - y)² = (5 - 3)² = 4

x + √y = 4 + √3 = 5.732

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Let y² – 2y + 1 = x and . The value of equals ________. (Give the answer up to three decimal places)

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