#start code here

from sympy$.$vector import CoordSys$3$D

N $=$ CoordSys$3$D$(\text{'}$N$\text{'})$

a $=2*$N$.$i $+3*$N$.$j

b $=-1*$N$.$i $+5*$N$.$j

print$($f$"$a$+$b is $<\{($a$+$b$).$to$\_$matrix$($N$)[0]\},\{($a$+$b$).$to$\_$matrix$($N$)[1]\}>")$

print$($f$"$a$-$b is $<\{($a$-$b$).$to$\_$matrix$($N$)[0]\},\{($a$-$b$).$to$\_$matrix$($N$)[1]\}>")$

print$($f$"3$a$-5$b is $<\{(3*$a$-5*$b$).$to$\_$matrix$($N$)[0]\},\{(3*$a$-5*$b$).$to$\_$matrix$($N$)[1]\}>")$