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.
s
o
l
v
e
f
o
r
t
:
-
2
*
t
1
+
4
*
t
2
+
s
i
n
a
r
c
t
a
n
2
*
t
-
t
1
+
4
t
2
2
-
a
r
c
s
i
n
h
2
*
t
4
=
0
Math Input
Natural Language
Math Input