Question

if a=√3/2 find the value of (1+a)-(1-a)​

Answer 1

if,a=√3/2

then,(1+a)-(1-a)=1+a+1+a

=2+2a

=2+2(√3/2)

=2+√3

Answer 2

(1-a)-(1+a)=1-a-1-a
=-2a
=-2(√3/2)
=-√3