Answer:
The answer is 
Step-by-step explanation:
When we divide two fractions, we multiply the numerator by the inverse of the denominator. So

The answer is 
Answer:
The approximate value of
is 1.366.
Step-by-step explanation:
Let
, we proceed to simplify the formula until a form based exclusively in sines and cosines is found. From Trigonometry, we shall use the following identities:
(1)
(2)
(3)
Then, we simplify the given formula:




If we know that
, then the approximate value of the given function is:


