1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
saul85 [17]
3 years ago
10

Tangent is positive in quadrants I and IV only.True or False

Mathematics
2 answers:
zhannawk [14.2K]3 years ago
6 0

Answer:

The statement is false

Step-by-step explanation:

we know that

tan(x)=\frac{sin(x)}{cos(x)}

The tangent function will be positive when the sine function and the cosine function have the same sign

so

In the first quadrant the tangent function is positive

In the third quadrant the tangent function is positive

so

The statement is false

bogdanovich [222]3 years ago
3 0
I believe the correct answer would be false. The tangents are positive in quadrant I and in III. A tangent in a certain quadrant is said to be positive if all 3 trigonometric function, namely sine, cosine and tangent, are positive. Hope this answers the question. Have a nice day.
You might be interested in
the estimated population of the world was 1.6 billion in 1900 and 4.0 billion in 1975 what is the percent of increase
bogdanovich [222]
I'm not sure either!
6 0
2 years ago
If -xy – 5+ y^2+ x^2= 0 and it is known that dy/dx= y-2x/-x+2y, find all
sleet_krkn [62]

Answer:

There is no point of the form (-1, y) on the curve where the tangent is horizontal

Step-by-step explanation:

Notice that when x = - 1. then dy/dx becomes:

dy/dx= (y+2) / (2y+1)

therefore, to request that the tangent is horizontal we ask for the y values that make dy/dx equal to ZERO:

0 = ( y + 2) / (2 y + 1)

And we obtain y = -2 as the answer.

But if we try the point (-1, -2) in the original equation, we find that it DOESN'T belong to the curve because it doesn't satisfy the equation as shown below:

(-1)^2 + (-2)^2 - (-1)*(-2) - 5 = 1 + 4 + 2 - 5 = 2  (instead of zero)

Then, we conclude that there is no horizontal tangent to the curve for x = -1.

3 0
2 years ago
Can someone show me how to work out this example?<br><br><br> (5+44+182−20−10)÷(2+5)
lora16 [44]

Answer:

approximately 35.9

Step-by-step explanation:

(5+44+182-20-10)÷(2+5)

(99+182-20-10)÷(7)

(281-20-10)÷(7)

(261-10)÷÷(7)

(251)÷(7)

approximately 35.9

6 0
3 years ago
Solve for n.<br><br> –2(n + 2) + 6 = 8<br><br> n =
Sphinxa [80]

Answer:

<h2>n = <u>-3</u></h2>

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Solve for x.<br><br> 4x + 6 = 38<br><br> What is the answer?
sertanlavr [38]

Answer:

x = 8

Step-by-step explanation:

We solve the equation:

4x + 6 = 38

4x = 38 - 6

4x = 32

x = 32 ÷ 4

x = 8

3 0
3 years ago
Read 2 more answers
Other questions:
  • A scientist studying bacteria begins with 20 cells. The bacteria population doubles every hour. Complete the table below to dete
    12·2 answers
  • 1/2 9/10 4/5 which on e go first to put in lowest number on the left
    5·2 answers
  • Is 27/51 equal to 18/34
    13·2 answers
  • What percentage of 80 is 40
    6·1 answer
  • PLZ HELP ME SOLVE THIS
    5·2 answers
  • What is the equation of the line parallel to y = 9x - 5 passing through (1, 5)
    7·2 answers
  • 4(9 ÷ 3)^2 Can you please help
    6·1 answer
  • Five whole numbers are written in order.
    14·2 answers
  • A rectangular swimming pool has a length of 50 meters, a width of 25 meters, and a depth of 2 meters. How much paint would be ne
    11·1 answer
  • JK bisects angle LJM, the measure of angle LJM=2x+15, and the measure of angle KJM=6x-5. Solve for x.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!