Try NerdPal! Our new app on iOS and Android

# Simplify the trigonometric expression $\sin\left(30\right)^2-2\cos\left(30^2\right)$

## Step-by-step Solution

Go!
Go!
1
2
3
4
5
6
7
8
9
0
a
b
c
d
f
g
m
n
u
v
w
x
y
z
.
(◻)
+
-
×
◻/◻
/
÷
2

e
π
ln
log
log
lim
d/dx
Dx
|◻|
θ
=
>
<
>=
<=
sin
cos
tan
cot
sec
csc

asin
acos
atan
acot
asec
acsc

sinh
cosh
tanh
coth
sech
csch

asinh
acosh
atanh
acoth
asech
acsch

### Videos

$0.843713$
Got another answer? Verify it here!

## Step-by-step Solution

Problem to solve:

$\sin\left(30\right)^2-2\cos\left(30^2\right)$

Specify the solving method

1

Calculate the power $30^2$

$\sin\left(30\right)^2-2\cos\left(900\right)$

Learn how to solve simplify trigonometric expressions problems step by step online.

$\sin\left(30\right)^2-2\cos\left(900\right)$

Learn how to solve simplify trigonometric expressions problems step by step online. Simplify the trigonometric expression sin(30)^2-2cos(30^2). Calculate the power 30^2. The sine of 30 equals -0.988032. Calculate the power {\left(-0.988032\right)}^2. The cosine of 900 equals \frac{21}{317}.

$0.843713$
SnapXam A2

### beta Got another answer? Verify it!

Go!
1
2
3
4
5
6
7
8
9
0
a
b
c
d
f
g
m
n
u
v
w
x
y
z
.
(◻)
+
-
×
◻/◻
/
÷
2

e
π
ln
log
log
lim
d/dx
Dx
|◻|
θ
=
>
<
>=
<=
sin
cos
tan
cot
sec
csc

asin
acos
atan
acot
asec
acsc

sinh
cosh
tanh
coth
sech
csch

asinh
acosh
atanh
acoth
asech
acsch

$\sin\left(30\right)^2-2\cos\left(30^2\right)$