Flipping over the trigonometric functions of sine, cosine and tangent we have the following respectively
1/cscФ (sinФ), 1/secФ (cosФ) and 1/cotФ (tanФ). These are the identities for which they numerically equal when the numerator and denominator of these fractions are swapped.
Answer:
3
Step-by-step explanation:
18*x=54 (divide both sides by 18)
x = 54 ÷ 18
x = 3
Answer:
Step-by-step explanation:
Recall that on the unit circle, each point is represented as
where
. In this case, we are asked to take a loot at the interval
.
We will use the definition of tangent to solve the problem. REcall that

So, in this case, tangent is undefined whenever the denominator is zero. That is, when
. Checking the unit circle with the interval
, this restriction corresponds to the upper half of the unit circle. In this case, the x component of each point is cosine. We are interested at the points where
.
. This happens only at the point (0,1), which is associated with the value of 
For x you insert zero, and
0 = 2 - 8 * 0
0 = 2