i'm having troubles solving this problem in physics involving dot product rule
Vector B is 5m and 60 degress above the x axis
A has the same magnitude as C and C is has 25 more degrees than A ..
find magnitude of A..
B dot C = 35
B dot A = 30
this all we're given.. as far as i can get it i make it down to two equations
cos([tex]\theta[/tex] + 25) = 7/C and cos([tex]\theta[/tex]) = 6/C