Question

please answer quickly​

Answer 1

Step-by-step explanation:

Given -

• Number 7/(5√3 - 5√2)

To Find -

• What would be the denominator after rationalising ?

Now,

Rationalising the number :-

→ 7÷(5√3 - 5√2) × 5√3 + 5√2÷5√3+5√2

→ 7(5√3 + 5√2)/75-50

→ 35√3 + 35√2/25

Hence,

The number comes after rationalising 7/(5√3-5√2) is 25.

Therefore,

Option (3) is correct.

Answer 2

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