You can use one of the sum-to-product identities.
For example,
use
along with
To get
Or, using ,
.
--Kevin C.
You can use one of the sum-to-product identities.
For example,
use
along with
To get
Or, using ,
.
--Kevin C.
Thanks for the replys fellas. I loved doing this kind of maths a long time ago and i am now very rusty.
Could someone please verify that
root2*415cos(100piet)-root2*415sin(100piet)=2*root830sin(wt- Pie/2)
i couldnt get the maths symbols to copy over hence why i had the write "pie" and "root".
this was the original question that my nephew asked me.
Id be very greatful for some help here
Thanks guys