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What is ᴨ
use formula for sin4x
the problem doesn't say...just says to use trigonometric identities to find the values
But what is "ᴨ" is it theta or something else. What is it?
expand sin4x, put x as 5pi/8 and equate the expa nsion of sin4x to 1
Is it pi?
Sin ((270-45)/2)=sin (5(pi)/8)
Do you understand this step?
Do you understand the step "Sin ((270-45)/2)=sin (5(pi)/8)"
not really, but i think you got the 270 from 3pi/2 and the 45 from pi/4....
Well, I am trying to express the thing in degree format. (Sorry for using jumbled form). By the term I mean 180 degree
By the term pi mean 180 degree
\[Sin ((3\pi/2-\pi/4)/2)=sin (5\pi/8)\]
Now does that makes sense?
Now can you do the rest, or I will have to show you every steps.
so, sin (225/2)=sin (112.5)? you might have to show me the steps.
or is it sin (5pi/4 divided by 2)
Yes, thats true, but thats not helpful here. \[Sin ((3\pi/2-\pi/4)/2)=sin (5\pi/8)\] \[=>sin (5\pi/8)=\sqrt(0.5(1-cos(3\pi/2-\pi/4))\]
Now you got to use addition formula for cos to solve the part with cos, and then it will be done
I am totally lost .....this does not look at all familiar.....
are you familiar with double angle formula for trig?
i'm sure we went over them....but nothing coming to mind
Then you can't expect to get this thing within your understandability range
that's why I am having trouble....thought if someone walked me through it, it would make sense
If you wish I can tutor you (in exchange of some nominal payment) :)
Seems like you are not interested. So may I leave?
didn't know i had to pay for help
No no not that
you can get free help here for ever
But I don't think they will be very helpful
So incase you need personal help
I mean through audio chatting and virtual black board
I can't teach you everything here. This place is too inconvenient to type even a simple equation
I mean no one can
thanks for the offer, but rather just stay here
Thats great. No problem