Question

check whether (√2-√3)×(√2+√3) is rational or irrational​

Answer 1

Answer:

(√2-√3)(√2+√3)

we know the identity

(a-b) (a+b)=a²-b²

(√2)²-(√3)² =2-3=-1

which is a rational number.

Step-by-step explanation:

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