Math question

[Kazeon]

Hello. I need help here and this is about math.

How to find (calculate) a if there only x and c are known? Thanks

 

[SAUS]

cos(x) = a / c
c * cos(x) = a
c = a / cos(x)

 

[Wietlol]

x = cos-1(a/c)
a = c * cos(x)
c = a / cos(x)

Not much difference, just a bit of how you write something.

 

[Arad MNK]

c = a / cos(x)

Dunno about the radian stuff.

 

[SAUS]

x = cos-1(a/c)
a = c * cos(x)
c = a / cos(x)

Not much difference, just a bit of how you write something.

Oh I was just starting with:
cos(x) = a / c

and then simple algebra to turn it into c = ...
I showed the steps for myself mostly, I guess.