Answer:
4x= 40
Step-by-step explanation:
40/4 = 10
Well the answer i got was

when i multiplied
the answer i got when i added was
Answer:
1 4/6
Step-by-step explanation:
cos 2 x = cos² x - sin² x = 1 - sin² x - sin² x = 1 - 2 sin² x.
Answer: A ) 1 - sin² x and D ) cos² x - sin² x
Thank you.