- Home
- Standard 11
- Mathematics
4-1.Complex numbers
easy
$1 - i$ ની વિરોધી સંખ્યા મેળવો.
A
$0 + 0i$
B
$ - 1 - i$
C
$ - 1 + i$
D
એકપણ નહીં.
Solution
(c) If $z = x + iy$ is the additive inverse of $1 – i$then $(x + iy) + (1 – i) = 0$
==> $x + 1 = 0$, $y – 1 = 0$
==> $x = – 1$, $y = 1$
$\therefore $ The additive inverse of $1 – i$is $z = – 1 + i$
Trick : Since $(1 – i) + ( – 1 + i) = 0$.
Standard 11
Mathematics