Question

If p square + 1 divided by p square = 7 find the value of P + 1 by P where p is greater than zero

Answer 1

Answer:

±3

Step-by-step explanation:

It is given that:

p² + 1/p² = 7

Add 2 on both sides:

p² + 1/p² + 2 = 7 + 2

we can write above equation as:

p² + 1/p² + 2×p×1/p = 9

(p + 1/p)² = 9 {Since a² + b² +2ab = (a+b)²}

Therefore:

p + 1/p = ±3

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