Hello Mampac. That's a good start. Note that i appears on the left-hand side, but not on the right-hand side. Does that fact give you an idea about what must be the value of a?… ai - b = 1 …
Notation: If \(\displaystyle z=a+bi\) then \(\displaystyle \Re(z)=a~\&~\Im(z)=b\) (the real & imaginary parts of \(\displaystyle z\))View attachment 14786
Hello there, ran into this question, couldn't move further than ai - b = 1; according to the answers, the answer is 1. No explanation, however.
(a + bi) * i = 1View attachment 14786
Hello there, ran into this question, couldn't move further than ai - b = 1; according to the answers, the answer is 1. No explanation, however.
Go directly to the corner for this error!(a + bi) * i = 1
a*i - b = 1
a*i - b = 1 - 0*i
equating real terms and imaginary terms of the equation:
- b = 1 \(\displaystyle \ \to \ \) b = -1
a = 0
a - b = 0 - (-1) = 0
(a + bi) * i = 1
a*i - b = 1
a*i - b = 1 - 0*i
equating real terms and imaginary terms of the equation:
- b = 1 \(\displaystyle \ \to \ \) b = -1
a = 0
a - b = 0 - (-1) = 1 ................................edited (from the corner)