3( 1/2*√2/2+√3/2*√2/2) divided by √2/2.

=3(√2/4+√6/4) divided by √2/2

=6(√2/4+√6/4) divided by √2/2

=6√2(√/4+√6/4) divided by 2

=3√2(√2/4+√6/4)

=3√2*√2/4+3√2*√6/4

=(6+3√ 12)/4

=(6+6√3)/4

=(3+3√3)/2

=3( 1+√3) divided by 2

1+2√3+3 divided by minus 2.

=4+2√3 divided by minus 2

= 2+3 divided by negative 1

= minus 2-2√3

I hope it helps you.