Question

Find the value of ( 2 + √3 ) (2 - √3 )

Answer 1

Answer:

4 -2√ 3 + 2√ 3 - 3

= 4 - 3

= 1 ANS.

Answer 2

Answer:

using eq (a+b)(a-b)=a²-b²

2²-root3²

4-3=1