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
gogolik [260]
3 years ago
8

Cot x sec4x = coy x + 2 tan x + tan3x

Mathematics
1 answer:
Fantom [35]3 years ago
7 0

Answer:

Step-by-step explanation:

Simplify RHS

Cotx +2tanx+tan^3x

Cotx/sinx+2(sinx/cosx)+sin^3x/cos^3x

Taking LCM

(cos^4x+2sin^2xcos^2x+sin^4x)/sinx cos^3x

(Cos^2x+sin^2x)^2/sinx cos^3x

(1/sinx cos^3x)

(1/sinx cos^3x)*(cosx/cosx)

Cotx sec^4x

LHS=RHS

Hence proved

You might be interested in
The distance from Caleb's house to the school is 1.5 miles, and the distance from Ashley's house to the school is 3520 feet. Who
lapo4ka [179]

Hi there!

To solve this problem, first we need to convert everything into feet.

1.5 mi = 7920 ft

Since
7920 is greater than 3520,

Ashley lives closer to the school.

Hope this helps!
4 0
3 years ago
A linear function has a slope of 4 and a y-intercept of (0,-8). What is the x-intercept of the line?
miss Akunina [59]

Answer:

The answer to your question is 2 or (2, 0)

Step-by-step explanation:

Data

slope = m = 4

y-intercept = -8

Process

1.- Write the equation of the line in the slope y-intercept

                    y = mx + b

In this equation:

m = slope

b = y-intercept

-Substitution

                   y = 4x - 8

2.- To find the x-intercept, consider that y = 0 and solve for x.

                   0 = 4x - 8

                   4x = 8

                     x = 8/4

                    x = 2    or (2, 0)

5 0
3 years ago
Read 2 more answers
You are planning to take a group of friends to the movies for your birthday. The local movie theater charges $12.99 per person.
enot [183]
The answer is 6 People. You make the two equations first 12.99x and 8.99x+20. And then make them equal each other 12.99x = 8.99x+20. Then you use algebra to solve for the x and you get an answer of 5. That is the number of people that would cause the two prices to break even (be the same price). So in order for the group rate to be the better deal you need 6 people to attend.
3 0
3 years ago
Read 2 more answers
Are (121 over 11),(23 over 3), and (85 over 5) in simplest form?
Sedaia [141]
Answers:

121/11=11

23/3=23/3

85/5=17
5 0
3 years ago
Read 2 more answers
Hey you can help me out with this
iogann1982 [59]

Answer:

Step-by-step explanation:

To find the angles of any shape with all sides equal in length, we use the formula:

    \frac{(n-2)*180}{n} , where n is the number of sides

For a pentagon, we get the equation:

\frac{(5-2)*180}{5}= 108 degrees

Thus the measure of each in a pentagon if the lengths of all five sides are equal is 108 degrees.

Hope that helps!

6 0
2 years ago
Read 2 more answers
Other questions:
  • Maria put trim around a banner that is the shape of a triangle. Each side is 22 inches long. Maria has 1/2foot of trim left. Wha
    6·1 answer
  • Plz can someone help
    14·1 answer
  • 2 x_= 1<br><br> Find missing number. Please help me
    9·2 answers
  • What must be given to prove that CJG ~ CEA
    15·1 answer
  • Samantha's age is 3 years more than half her uncle's age. If her uncle's age is z years, which of the following expressions best
    7·1 answer
  • Find an integer, x, such that 2, 4, and x represent the lengths of the sides of an obtuse triangle.
    7·1 answer
  • One lap around the lake is 710 mile.
    7·1 answer
  • 31.5 x _____ = 464 2/4 HELPPPPPPPPPP ASAP
    5·1 answer
  • Please help pls pls pls plssss
    6·2 answers
  • The sum of two numbers is −12.6 , identify two negative addends that make the statement true.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!