Solve block

[JH_9781973]

I am trying to get the values using solve block but it is giving me error which does not resemble anything. Could someone please help me here 

[terryhendicott · Accepted solution]

Hi

Define A

cos() is a function with one parameter inside brackets..

[LucMeekes]

Or:

Then fill in the values for A, B etc.

Success!
Luc