You'll notice that 36's prime factors had 2 even, and none other had an even number of even prime factors. Therefore, if you have an even number of even prime factors, your square root will be rational given the data
Answer:
The exact value of cos(45°) is √(2) / 2.
Step-by-step explanation:
√23-irrational
104.42-rational
√64-irrational
49.396-rational
10.97846727460-rational
A. but I would double check on that one first.
Answer:
40 degrees
Step-by-step explanation:
Angle ACO = 80 ( 180 - 100)
Angle CAO = 60 (180 - 120)
Angle AOC = 40 (180 - 80 - 60) (TOTAL DEGREES OF A TRIANGLE IS 180)
