Cos² 2x = (1+cos 4x )/2
cos² 6x = (1+cos 12x)/2
subtract to get 1/2 (cos 4x - cos 12x )
= 1/2 (2 sin 4x sin 8x ) as cos A - cos B = 2 [ sin (A+B)/2 sin (A-B)/2 ]
so the answer
The first one is 5.3 you multiply 4x4 which is 16 then divide by 3 which then gives you the answer
Answer:
it's x- axis,y- axis,x-axis
Step-by-step explanation:
hope this will help you