Question

Q.1. The number (√3-1)(√3+1) is
Q. 2. Write the following in decimal form and say what kind of decimal expression each has:
(a) 1910019100
(b) 1313
(c) 11121112
(d) 113113
(e) 313313
(f) 11140011140

Answer 1

Answer:

Q1) Formula (a+b)(a-b)=A^2 -b^2

=(✓3^2)-(1^2)

=3-1

=2