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

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

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

Pre-Calculus - Simplify expressions using fundamental identities, (cosx)^2 ((secx)^2 - 1)

https://www.youtube.com/watch?v=yY2A3JwKBWI

Pre-Calculus - Simplify expressions using fundamental identities, (1 - (cosx)^2)(cscx)

https://www.youtube.com/watch?v=uJD9yyaSDm8

Tutorial - Simplify a rational trigonometric expression 24, ((sinx)^2 - (cosx)^2) / (1 - 2(cosx)^2)

https://www.youtube.com/watch?v=taFMJ3iNVhM

Pre-Calculus - Learn how to simplify a trig identity 1/(tan^x+1)

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

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Function Plot

Plotting: $\cos\left(x\right)^2$

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a
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v
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x
y
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.
(◻)
+
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◻/◻
/
÷
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

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Main Topic: Differential Calculus

The derivative of a function of a real variable measures the sensitivity to change of a quantity (a function value or dependent variable) which is determined by another quantity (the independent variable). Derivatives are a fundamental tool of calculus.

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