Add and subtract with algebraic expressions and multiply and divide with exponential expressions. This topic is addition and subtraction, which should be converted into algebraic expressions:
2∠45 + 1∠-30
= 2 cos 45+j 2 sin 45+cos(-30)+j sin(-30)
= √2 + j √2 + √3/2 - j 0.5
= (√2 + √3/2) + j (√2 - 0.5)
= 2.28 + j0.9 142
= 2.456∠2 1.84