Question

prove that sinhx greater than zero

Answer 1

prove that sinhx>o

Answer 2

solution to that

Answer 3

do you want the solution to set to where sinhx > 0 or prove that sinhx >0 (as stated in your post) ?

because the latter is false...

Answer 4

prove that sinhx>0

Answer 5

hyperbolic function

Answer 6

pls save me out i av exam on saturday

Answer 7

is there a domain restriction because sinhx < 0 for x < 0.
yes, hyperbolic function sinhx = (e^x - e^-x)/2.... this function is negative for x<0.

if you want to prove that sinhx > 0 for x>0, then just do it normally...

Answer 8

as you can see from the almighty wolfram, sinh(x) is negative for x<0...
http://www.wolframalpha.com/input/?i=graph+sinh%28x%29

Answer 9

pls i dont understand it

Answer 10

ok... don't worry.... it's eaier than you think....

Answer 11

***easier***

Answer 12

let's get the question correct first:
the question is to prove that sinhx > 0 for all x or for x>0 ?

Answer 13

hello?

Answer 14

\[x > 0\]

Answer 15

in hyperbolic function

Answer 16

hyperbolic sinh(x).. ok.

Answer 17

yes

Answer 18

btw... don't let the name hyperbolic function scare you... all it is is an exponential function -- one of the easiest functions to work with in calculus...

Answer 19

let f(x) = sinh(x). so first we need to find the zero(s) of f...

Answer 20

ok

Answer 21

the zero for f occurs at x=0 only... lemme know if you need any clarification here...