Sin 40° + sin 130° + sin 220° + sin 310° = ...
sin 130° = sin 50°;
sin 220° = - sin 40°;
sin 310° = - sin 50°
... = sin 40° + sin 50° - sin 40° - sin 50° = 0
Answer: 0.
Answer:
the ratio is 5 to 1.
Step-by-step explanation:
6.4^4 (b^3) or as shown in photo
Answer:
5×5
Step-by-step explanation:
the factorazation is 5×5
It is correct
One room per day. Nine rooms in nine days
