Question

please answer this question fast​

Answer 1

Answer:

1 is the  right ans

Step-by-step explanation:

Answer 2

Answer:

1( second option)

Step-by-step explanation:

(2+√3)(2-√3)

we know that

(a+b)(a-b) =a^2-b^2

here

a=2

b=√3

substitute a and b values in formula

we get

(2+√3)(2-√3)=(2)^2-(√3)^2 (root and square will be cancelled)

=4-3

=1