How do you find the values of ##sin 2theta## and ##cos 2thet...
How do you find the values of ##sin 2theta## and ##cos 2thet...
Get first the value of the of the opposite side fo get ##sin## and use the Double Angle Formula.
##costheta = 12/13##
##c^2=a^2+b^2##
##13^2=a^2 + 12^2##
##a^2=13^2-12^2= 169-144= 25##
##c= sqrt25 =5#...
