MATHEMATICS HIGH SCHOOL

Cot^2x-tan^2x=1 for all values of x true or false?

Answers

Answer 1
Answer:

Cot² x - tan² x = 1 is not true for all the values of x, where x is a trigonometric angle.

What is a trigonometric angle?

Trigonometric angles are the ratios of trigonometric functions.

If we consider a right-angle triangle with an angle between base and hypotenuse is Ф then:

tan Ф = (height/base), and

cot Ф  = 1/tan Ф = base/height

Given, Cot² x - tan² x = 1

This is not true for all the values of x. Here, x is a trigonometric angle.

If we take x = 45°, then: Cot² x - tan² x = (1)² - (1)² = 0.

Hence, the statement is not true for all the values of x.

Learn more about trigonometric angles here: brainly.com/question/14235900

#SPJ2
Answer 2
Answer: False
And I have to keep writing because Brainly will not me submit more than 20 characters 

Related Questions

Which solid figure has one polygon base? pyramid cone cylinder prism
A sheet of cardboard measures 9 feet by 6 feet. Gina makes the entire sheet of cardboard into a closed box that is a perfect cube. What is the surface area of the box?
There are 33 members of the Kennedy Middle School math club there are 7 more girls members than boy members how many boys and girls are members of the club
Greatest integer function What is the value of [-12]? A. –13 B. –12 C. 12 D. 13
How much greater is the five in the hundreds place the end of five in the tens place

Which measure is of an angle that is coterminal with a 95 degree angle

Answers


1).  You haven't told us what your choices are, so there's no way
we can help you choose the correct one.

2).  An angle that is to be coterminal with another angle of 95 degrees
doesn't need to be any particular size.  It just needs to use the same vertex
that the 95-degree one uses.

Edge Answer:

B. 95° – (1,080n)°, for any integer n

What value of x makes the equation true?–4.9 = –5.7 + x
a. x = –10.6
b. x = –0.8
c. x = 0.8
d. x = 10.6

Answers

-4.9=-5.7+0.8
-4.9=-4.9
Answer is C

Is y = 3x+4 and y=3x-5 parallel, perpendicular or neither?

Answers

Answer: These Lines are Parallel

Step-by-step explanation: For two lines to be parallel, they must have the same slope with different y-intercepts. Both of the lines above have a slope of 3 and differing y-intercepts of 4 and -5. Therefore, these lines must be parallel to one another.

Answer:

one sec sorry

Step-by-step explanation:

Tyra makes $21.40 per hour at her job for the first 40 hours and $32.10 for anything over 40 hours. If Tyra typically works 45 hours per week, how much does she earn? a. $856.00
b. $963.00
c. $1,016.50
d. $1,444.50

Answers

Answer:

Tyra earns $1016.5 .

Option (c) is correct .

Step-by-step explanation:

As given

Tyra makes $21.40 per hour at her job for the first 40 hours and $32.10 for anything over 40 hours.

If Tyra typically works 45 hours per week .

Tyra work over 40 hours =  45 -40

                                         = 5 hours

Amount Tyra earns for first 40 hours = 40 × 21.40

                                                              = $ 856

Amount Tyra earns for over 40 hours = 5 × 32.10

                                                              = $160.5

Total amount Tyra earns = Amount Tyra earns for first 40 hours + Amount Tyra earns for over 40 hours .

Putting the values in the above

Total amount Tyra earns = $856 + $160.5

                                         = $1016.5

Therefore  the Tyra earns $1016.5 .

Option (c) is correct.

The answer would be 1016.50.

Solve this equation: –9h – 6 + 12h + 40 = 22. A. h = 24 B. h = – 4 C. h = 4 D. h = –4/7

Answers

In the equation: -9h - 6 + 12h + 40 = 22, collecting like terms gives: -9h + 12h = 22 + 6 - 40 which gives 3h = -12. They we divide both sides of the equation by 3 to get 3h / 3 = -12 / 3 which gives h = -4. Therefore, the solution to the given equation is h = -4 (option B).

Hi I need some help with these questions. Thanks :)1. 3 consecutive odd numbers add to give 405. Find the smallest of the numbers.

2. 5 times a number less 7 is equal to 7 times the number plus 13. Find the number.

3. Chris earns four times Vesna's wage v and Vesna earns $17 more than Dawn. How many dollars does Chris earn if their combined wages are $163?

4. Percy is 8 years older than Ginny. In ten years time he will be three times Ginny's present age. How old is Percy now?

5. The two equal sides of an isosceles triangle are given as ( x + 2 ) cm and the third is ( x + 6 ) cm. I the perimeter of the triangle is 385 cm, find the value of x.

6. A choc frog is 11 cents dearer than a green frog. 3 green frogs and 2 choc frogs cost 57 cents. What is the cost of a choc frog I cents?

Answers

1. 3 consecutive odd numbers are x, x+2, x+4
     x+x+2+x+4=405
     x+x+x+2+4=405
     3x+6=405
     3x=399
     x=133 (smallest of the numbers)

2. Let the number =x
    5x-7=7x+13
    -7-13=7x-5x
    -20=2x
    x=-10

3. Chris earns 4v, Vesna earns v, Dawn earns v-17
    4v+v+v-17=163
    6v-17=163
    6v=180
    v=$30
   Chris earns 4v=$120
 
4. Ginny is x years old, Percy is x+8 years old
    In 10 years time, Percy will be x+8+10=3x
    x+18=3x
    18=2x
    x=9
    Percy is 9+8 years now=17 years

5. Perimeter of the triangle=sum of its sides
    385=x+2+x+2+x+6 
    385=3x+10
    375=3x
    x=125cm

6. A choc frog costs x. A green frog costs x-11
    2x+3(x-11)=57
    2x+3x-33=57
    5x=90
    x=18 cents
    A choc frog costs 18 cents
Other Questions
What is bigger 3 quarters or 5 eighths
What is 6.213 as a mixed number
Factor out 12x^2- 4x = 0
Use a trigonometric ratio to find the value of x. round your answer to nearest tenth