Answer:
13.75
Step-by-step explanation:
66-20- 32 1/4
66-20- 32.25
46-32.25
13.75
Answer:
-
Step-by-step explanation:
Two negatives create a positive.
4 + 4X is the expression simplified
1 hour is 15m
2 hour is 30m
3 hour is 65m
4 hour is 80m
(cos Ф -cos Ф)² + (cos Ф + cos Ф)²
Firstly: (cos Ф -cos Ф)² = 0² = 0
Secondly :(cos Ф + cos Ф)² = (2cos Ф)². = 4. (cos Ф)² = 4cos² Ф
Mind you when you raise a cosine (or sin or tan...) to the n power, the n power should affect the cosine only and NOT the angle Ф