Problem

Prove the identity. $ \cosh 2x = \cosh^2 x + \si…

00:42

Problem 15 Easy Difficulty

Prove the identity.
$ \sinh 2x = 2 \sinh x \cosh x $

Answer

$\sinh 2 x=\sinh (x+x)=\sinh x \cosh x+\cosh x \sinh x=2 \sinh x \cosh x$

Topics

Derivatives

Differentiation

Book Cover for Calculus: Early Tra…

Calculus: Early Transcendentals

Chapter 3

Differentiation Rules

Section 11

Hyperbolic Functions

Discussion

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Problem 1

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Video Transcript

We know that either the two experts e to the negative two x over, too. We can write this as two times. Each of the two acts preceded the Ark's most axe, my seat of the X minus axe. I wanna see the negative two acts. Remember, this is all divisible by four, two times E. The two acts runs E to the negative. Two acts over four gives us each of the two acts mines either the negative two acts and with the two and four, this just becomes 1/2.

Amrita B.

Topics

Derivatives

Differentiation

Book Cover for Calculus: Early Tra…

Calculus: Early Transcendentals

Chapter 3

Differentiation Rules

Section 11

Hyperbolic Functions

Top Calculus 1 / AB Educators

Kayleah T.

Harvey Mudd College

Kristen K.

University of Michigan - Ann Arbor

Samuel H.

University of Nottingham

Joseph L.

Boston College