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Simplify the trigonometric expression $\tan\left(90-x\right)\cos\left(90-x\right)-\sin\left(90-x\right)$

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Solution

Videos

Pre-Calculus - How to simplify a trigonometric expression by squaring a binomial (sin(x)+cos(x))^2

https://www.youtube.com/watch?v=e5IczuZxvVI

Simplifying basic trig identities - Math homework answers sec(x) (sin(x)/tan(x))

https://www.youtube.com/watch?v=JEv8uSt26bI

Pre-Calculus - How to simplify a trig expression using co-function, sin((pi/2) -x)/cos((pi/2) -x)

https://www.youtube.com/watch?v=LxdYYK2mnx4

Pre-Calculus - creating a monomial denominator to simplify my expression sinx/ (cot^2(x)+1)

https://www.youtube.com/watch?v=m7VqkIkvuEE

Pre-Calculus - Simplifying an expression using the sum formula for sine sin(3π/2+θ)

https://www.youtube.com/watch?v=_6Lrq-H147M

Trigonometry

https://www.youtube.com/watch?v=g8VCHoSk5_o

Function Plot

Plotting: $\tan\left(90-x\right)\cos\left(90-x\right)-\cos\left(x\right)$

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0
a
b
c
d
f
g
m
n
u
v
w
x
y
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.
(◻)
+
-
×
◻/◻
/
÷
◻2
◻◻
√◻
√

◻√◻
◻√
∞
e
π
ln
log
log◻
lim
d/dx
D□x
∫
∫◻
|◻|
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

How to improve your answer:

Similar Problems Solved

$\left(\sin\left(x\right)+\cos\left(x\right)\right)^2$

$1+cot^2x$

$tan\left(x\right)csc\left(x\right)$

$\tan\left(x\right)\csc\left(x\right)$

$\frac{2+\tan^2\left(x\right)}{\sec^2\left(x\right)}-1$

$csc^2x-1$

$\frac{2+tan^2x}{sec^2x}-1$

Main Topic: Simplify Trigonometric Expressions

Simplification of trigonometric expressions consists of rewriting an expression with trigonometric functions in a simpler form. To perform this task, we usually use the most common trigonometric identities, and some algebra.

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