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

## Step-by-step Solution

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###  Videos

$\frac{9}{4}$
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##  Step-by-step Solution 

Problem to solve:

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

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1

Calculate the power $30^2$

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

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

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

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 \frac{1}{2}. Calculate the power \left(\frac{1}{2}\right)^2. The cosine of 900 equals -1.

$\frac{9}{4}$

##  Explore different ways to solve this problem

SnapXam A2

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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

### Main topic:

Simplify trigonometric expressions

~ 0.02 s

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