Question

if sinh x = 15/8
find the values of the other hyperbolic functions at x.
cosh x =
tanh x =
csch x =
sech x =
coth x =

how do I do this ??

Answer 1

try reading here

Answer 2

read what ??

Answer 3

http://tutorial.math.lamar.edu/Classes/CalcI/DiffHyperTrigFcns.aspx

Answer 4

cosh^2(x) - sinh^2(x) = 1

Answer 5

subtitusi sinh = 15/8 to that equation

Answer 6

does 1.301708279 = cosh ??

Answer 7

can you do that?

Answer 8

what do you mean by that ?

Answer 9

subtitusi, sorry the network is bad

Answer 10

cosh x = 17/8

Answer 11

cosh^2(x)-(15/8)^2=1

cosh^2(x)=1+(15/8)^2

i am i on the right track ??

Answer 12

yes

Answer 13

cos=\[\sqrt{1+(15/8)^2}\]

Answer 14

yea it does

Answer 15

ok so from here how do i find the rest ?

Answer 16

http://media.cheggcdn.com/media%2Fa1c%2Fa1c2b156-d2d2-4708-9301-cefd692b92e5%2FphpVPjebc.png

Answer 17

this ??

Answer 18

(15/8)^2 = 15^2/8^2

Answer 19

what does that mean ?

Answer 20

\[\sqrt{1+\ \left( \frac{ 15 }{ 8 } \right)^2}\]

Answer 21

\[\sqrt{1+\frac{ 15^2 }{ 8^2 }}\]

Answer 22

yea that's 17/8

Answer 23

\[\sqrt{1+\frac{ 225 }{ 64 }}\]

Answer 24

yes that right

Answer 25

how do we find tanh (x) form there ?

Answer 26

tanh x = sinh x / cosh x

Answer 27

(15/8)/(17/8)= tanh(x)

Answer 28

yes, simplify

Answer 29

csch x = 1/sinh x

sech x = 1/ cosh x

coth x = 1 / tanh x

Answer 30

So csch is 1/(15/8)

Answer 31

yes, but please simplify become 8/15

Answer 32

ok I understand this now than you soo much !!!!

Answer 33

thank you soo much !

Answer 34

oks