Asinwt=1/2A
wt=?
help please

"Kimmy" wrote in message . 4.25...
Asinwt=1/2A
wt=?
help please

if A = 0 then w t can be anything you want.

if not A=0 then
sin(w t) = 1/2
so
w t = pi / 6 + 2 k pi
for any integer number k in {...,-2,-1,0,1,2,...}
or
w t = 5 pi / 6 + 2 k' pi
for any integer number k' in {...,-2,-1,0,1,2,...}

Dirk Vdm

In article ,
Kimmy wrote:
Asinwt=1/2A
wt=?
help please

A sin(wt) = 1/2A

sin(wt) = 1/2A^2

wt = arcsin(1/2A^2)

--
"Let us learn to dream, gentlemen, then perhaps we shall find the
truth... But let us beware of publishing our dreams before they have been
put to the proof by the waking understanding." -- Friedrich August Kekulé

"Gregory L. Hansen" wrote in message ...
In article ,
Kimmy wrote:
Asinwt=1/2A
wt=?
help please

A sin(wt) = 1/2A

sin(wt) = 1/2A^2

wt = arcsin(1/2A^2)

If he means 1/2A to be 1/(2A) :-)

Dirk Vdm

Kimmy wrote:
Asinwt=1/2A
wt=?
help please



Let's see. Kimmy, if you mean and assume A not = zero,

1
A*sin(wt) = ------- , then
2*A

Divide both sides by A to get:

1
sin(wt) = -------
2*A^2

taking inverse sine of both side gives


1
wt = arcsin (-------)
2*A^2
Whe

1
------- = 1
2*A^2

and A = sqrt(2)

However, if you mean,


A*sin(wt) = (1/2)*A then

Divide both sides by A to get


sin(wt) = 1/2

Taking inverse sine of both sides gives:

wt = arcsin(1/2)