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.
1
.
9
0
4
-
y
=
0
.
3
0
.
3
x
+
1
+
0
.
3
*
c
o
s
x
+
1
1
3
.
3
3
8
-
x
Math Input
Natural Language
Math Input