Chp 1: Hyperbolic Functions

Question 1

Sinh (x)

Answer 1

e^x - e^-x / 2

Question 2

Cosh (x)

Answer 2

e^x + e^-x / 2

Question 3

( Cosh (x) )^2 - ( sinh (x) )^2

Answer 3

1

Question 4

[ tanh (x) ]^2 + [ sech (x) ]^2

Answer 4

1

Question 5

[ coth (x) ]^2 - [ csch (x) ]^2

Answer 5

1

Question 6

Sinh (2x)

Answer 6

2 sinh (x) cosh (x)

Question 7

Cosh (2x)

Answer 7

[ Cosh (x) ]^2 + [ sinh (x) ]^2

Question 8

Tanh (2x)

Answer 8

2 tanh (x) / 1 + [ tanh (x) ]^2