
US StandardsAligned
K12 Curriculum Aligned to Stateand Common Core Standards.

IXL Family Membership
Get Started for $9.95/month.Win Prizes, Certificates. Have Fun!

IXL K12 Math Practice
IXL is the Web's Most AdaptiveMath Practice Site. Try it Now!

IXL Teacher Membership
Sign Up for a Free 30Day Trial NowGet Your Students Online in Minutes
www.intmath.com/.../1derivativesinecosinetangent.php
Derivatives of the Sine, Cosine and Tangent Functions. by M. Bourne. It can be shown from first principles that: `(d(sin x))/(dx)=cos x` `(d(cos x))/dx=sin x` `(d(tan x))/(dx)=sec^2x` Explore animations of these functions with their derivatives here: Differentiation Interactive Applet  trigonometric functions.
en.wikipedia.org/wiki/Derivatives_of_sine_and_cosine
The differentiation of trigonometric functions is the mathematical process of finding the derivative of a trigonometric function, or its rate of change with respect to a variable. Common trigonometric functions include sin(x), cos(x) and tan(x). For example, the derivative of f(x) = sin(x) is represented as f ′(a) = cos(a).
www.math.com/tables/derivatives/more/trig.htm
Free math lessons and math homework help from basic math to algebra, geometry and beyond. Students, teachers, parents, and everyone can find solutions to their math problems instantly.
www.themathpage.com/acalc/sine.htm
The derivative of sin x. The derivative of cos x. The derivative of tan x. The derivative of cot x. The derivative of sec x. The derivative of csc x. T HE DERIVATIVE of sin x is cos x. To prove that, we will use the following identity: sin A − sin B = 2 cos ½(A + B) sin ½(A − B). (Topic 20 of Trigonometry.) Problem 1. Use that identity to ...
en.wikipedia.org/wiki/Hyperbolic_function
The derivative of sinh x is cosh x and the derivative of cosh x is sinh x; this is similar to trigonometric functions, albeit the sign is different (i.e., the derivative of cos x is −sin x). The Gudermannian function gives a direct relationship between the circular functions and the hyperbolic ones that does not involve complex numbers.
math.libretexts.org/Bookshelves/Calculus/Book:_Calculus_...
We can find the derivatives of sin x and cos x by using the definition of derivative and the limit formulas found earlier. The results are \(\dfrac{d}{dx}\sin x=\cos x\dfrac{d}{dx}\cos x=−\sin x\). With these two formulas, we can determine the derivatives of all six basic trigonometric functions.
www.ocf.berkeley.edu/.../trigonometric_derivatives.pdf
sin(x) = d dx sin(x) = cos(x) The derivatives of cos(x) have the same behavior, repeating every cycle of 4. The nth derivative of cosine is the (n+1)th derivative of sine, as cosine is the ﬁrst derivative of sine. The derivatives of sine and cosine display this cyclic behavior due to their relationship to the complex exponential function.
www.intmath.com/.../3derivativearcsinarccosarctan.php
3. Derivatives of the Inverse Trigonometric Functions. by M. Bourne. Recall from when we first met inverse trigonometric functions: " sin1 x" means "find the angle whose sine equals x". Example 1. If x = sin1 0.2588 then by using the calculator, x = 15°. We have found the angle whose sine is 0.2588.
www.youtube.com/watch?v=FztF4sJ66rY
Proofs of the derivative formulas for the sine and cosine functions.

US StandardsAligned
K12 Curriculum Aligned to Stateand Common Core Standards.

IXL Family Membership
Get Started for $9.95/month.Win Prizes, Certificates. Have Fun!

IXL K12 Math Practice
IXL is the Web's Most AdaptiveMath Practice Site. Try it Now!

IXL Teacher Membership
Sign Up for a Free 30Day Trial NowGet Your Students Online in Minutes