Question

Rationalise the denominator of 1 . 7+2√3​

Answer 1

Answer:

Correct option is

A

3

7

+2

We use the identity (a+

b

)(a−

b

)=a

2

−b.

Multiply and divide

7

−2

1

by

7

+2 to get

7

−2

1

×

7

+2

7

+2

=

7−4

7

+2

=

3

7

+2

Hence, option A.

Explanation:

please make as brilliant and thanks

Answer 2

hope it is helpful for you