Answer:
?
Step-by-step explanation:
A quadrant is the area that is divided into the x and y axes
The quadrants in which tan
and cot
are positive are I and III
<h3>How to determine the quadrants</h3>
The tangent of an angle is calculated as:

While the cotangent of the angle is calculated as:

The above equations mean that:
For the tangent and cotangent of an angle to be positive, then the sine and the cosine of the angle must have the same sign.
- In the first quadrant, the sine and the cosine angles are positive.
- In the third quadrant, the sine and the cosine angles are negative.
Hence, the quadrants in which tan
and cot
are positive are I and III
Read more about trigonometry ratios at:
brainly.com/question/8120556
Answer:
Step-by-step explanation:
Remark
The two black suites are
Clubs
Spades
Each of them has 13 cards so the total number of black cards is 2*13 = 26
Add to that the hearts which also has 13 cards
The total number of possible good cards is 13 + 26 = 39
Answer
P(hearts or Black) = 39/52
P(hearts or Black) = 3/4
P(hearts or Black) = 0.75