Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
2
a
b
1
+
i
a
-
1
-
i
b
2
*
c
o
n
j
a
1
-
i
*
c
o
n
j
a
c
o
n
j
b
-
1
+
i
*
c
o
n
j
b
=
1
0
0
1
Math Input
Natural Language
Math Input