In Problems 1 to 9, solve the quadratic equations.
1. x²+25=0
2.
3.
4.
5.
6.
introduction to c a r te sia n complex number
Further problem s on the
7.
8.
9.
10.
x²-2x+2=0
x² - 4x+5=0
x² - 6x +10=0
2x²-2x+1=0
x² - 4x+8=0
2
25x²-10x+2=0
2x²+3x+4=0
412-51+7=0
으름 +3 or -0.750j1.199
in 100
[js]
[x=1±j]
[x=2±j]
[x=3±jl
[x=0.5 10.5]
[x=2/21
[x=0.2 ± 10.2]
Evaluate (a) j³ (b)
√87
t; or 0.625 j1.160
166]
199]
5-77 2713
[(a) 1 (b)-j (c)-j2]