answersLogoWhite

0


Best Answer

cosh^2 x - sinh^2 x = 1

cosh x = 1+ sinh^2 x

cosh x = 1+(-3/5)^2

cosh x = 1+9/25 = 34/25

cosh 2x = 2 sinh x cosh x

cosh 2x = 2 (-3/5) (34/25)

=-204/125

User Avatar

Wiki User

13y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Sinh x equals -3divide5 find cosh2x?
Write your answer...
Submit
Still have questions?
magnify glass
imp