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
ss7ja [257]
3 years ago
13

State when f(x) is increasing , decreasing , concave up , concave down .

Mathematics
1 answer:
Marizza181 [45]3 years ago
3 0

Answer:

f(x) = sec x. tan x

⇔ f(x) = 1/cosx . cosx/sinx

⇔ f(x) = sin x

+) when f(x) is increasing => sin x increases

=> x will increase

+) f(x) is decreasing => x will decrease

+) f(x) is concave up => x ∈ (-pi/2; 0)

+) f(x) concave down => x ∈ (0; pi/2)

Step-by-step explanation:

You might be interested in
The length of a rectangle is represented by (6x − 2), and the width is represented by (x − 1). Which expression best represents
Alina [70]
Area = (6x-2)(x-1)....
7 0
4 years ago
Which of the following would be the most logical first step to solving this
DIA [1.3K]

Answer:

The correct option is B:

Subtract 2 from both sides

Step-by-step explanation:

We have the equation x²-4x+16=2

The first step to solve this equation is:

Subtract 2 from both sides

We get;

x²-4x+16=2

x²-4x+16-2=2-2

x²-4x+14=0

Now this is the quadratic equation. You can use quadratic formula to solve this equation....

8 0
4 years ago
HELPP URGENT!
ollegr [7]

Answer:

Step-by-step explanation:

It’s B

4 0
3 years ago
Read 2 more answers
Can you tell how many students got allowances of $15? Explain.
neonofarm [45]
5 because it says 11-16 which is one number before 15. dollars
5 0
3 years ago
Simplify ((–3)^2)^3 <br><br><br> A. (–3)^6 <br> B. (3)^6 <br> C. (3)^5 <br> D. (–3)^5
makkiz [27]

Answer:

A and B

Step-by-step explanation:

using the law of exponents

• (a^m)^{n} = a^{mn}, hence

((-3)^2)^{3} = (-3)^{6} → A

note that (- 3)² = 9 = 3², hence

(-3)^2)^{3} = (3²)³ = (3)^{6} → B




5 0
3 years ago
Read 2 more answers
Other questions:
  • I am very confused with this. This is a algebra 1 question x-2x-2=-(x+4)-4
    8·1 answer
  • Select the correct answer. How can you write the expression 7(b – 2) in words? A. Two subtracted from the quotient of seven divi
    15·2 answers
  • Solve by making a proportion. If seven movie tickets cost $57.40, how much would 5 tickets cost?
    15·1 answer
  • PLEASE HELP. BRAINLEST IF CORRECT
    7·2 answers
  • Pls help me <br> I’m stuck on this question pls
    8·1 answer
  • Priya has 5 pencils, each x inches in length. When she lines up the pencils end to end, they measure 34.5 inches. Select all the
    11·1 answer
  • Marco needs to buy some cat food if the next two or three bags of cat food cost 17.25 how much with Marco spend on two bags of c
    14·2 answers
  • HELLLLPPPP PLEASE THIS IS DUE TONIGHT PLEASE EXPLAIN YOUR THINKING
    6·1 answer
  • The sum of a number and twelve is 21 what is the number. Pls help fast!
    7·2 answers
  • Evaluate 21 + (-3c) when c=-2
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!