Question

1. Show that : (5 + ✓5)(5 – 5) is rational number.​

Answer 1

Answer:

(5+√5) (5-√5)

⇒25-5√5+5√5-5

⇒20 is a rational number

⇒(5+√5) (5-√5) is rational number.

Step-by-step explanation:

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Answer 2

Answer:

refer attachment for answer