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
solmaris [256]
4 years ago
10

Prove Tan x - 1/Tan x + 1 = 1 - cot x/1 + cot x

Mathematics
1 answer:
klasskru [66]4 years ago
5 0
\dfrac{\tan x-1}{\tan x+1}=\dfrac{\dfrac{\sin x}{\cos x}-1}{\dfrac{\sin x}{\cos x}+1}=\dfrac{\sin x-\cos x}{\sin x+\cos x}=\dfrac{1-\dfrac{\cos x}{\sin x}}{1+\dfrac{\cos x}{\sin x}}=\dfrac{1-\cot x}{1+\cot x}
You might be interested in
1. The current ratio (assets/liabilities) of company X is 3.1. Given that the current assets are $186000, find the current liabi
katrin [286]
<span>1. The current ratio (assets/liabilities) of company X is 3.1. Given that the current assets are $186000, find the current liabilities:

Assets = A
Liabilities = L

A / L = 3.1 => L = A / 3.1

A =  186000 => L = 18600 / 3.1 = 6000

Answer: $ 6000

2. The board of directors determines that the current ratio must never be below 2.6. What is the maximum amount that the company can borrow?


A/L ≥ 2.6

=> L ≤ A / 2.6

=> L ≤ 186000 / 2.6

L ≤ 71538.46

Answer: $71538.46
</span>
6 0
3 years ago
if the number 517*324 is completely divisible by 3, then what is the smallest whole number that could replace the *?​
Lelechka [254]

Answer:

2

Step-by-step explanation:

5+1+7+x+3+2+4=x+22

x+22 is divisible by 3,

multiple of 3 are 3,6,9,12,15,18,21,24,27,...

if x=2 ,then x+22=2+22=24

so smallest number is 2

8 0
3 years ago
For every $5 Micah saves, his parents give him $10. What is the constant of proportionality
liberstina [14]
When he gets five he gets 2 mor fives
8 0
3 years ago
The scale of a map is 1:50 000. A distance is measured as 3cm on the map. How many cm, m and km is this equivalent to in real li
Ahat [919]
150000cm and 1500m and 1,5km
3 0
3 years ago
Read 2 more answers
I need help with question 3 please.
Gnoma [55]

Answer:

Length of IK is 8 feet, EK is 11 feet and BE is 25 feet.

Step-by-step explanation:

It is given that radius for circle B is 6 feet, circle K is 14 feet and circle D is 3 feet. In order to find the length, you have to either substract or add up :

IK = BK(radius of K) - BI(radius of B)

= 14 - 6

= 8 feet

EK = DK(radius of K) - DE(radius of D)

= 14 - 3

= 11 feet

BE = BK + EK(answer above)

= 14 + 11

= 25 feet

3 0
3 years ago
Other questions:
  • With a sales tax rate of 7.25% a store in california priced a surfboard at $230 what is the total cost of the surfboard?
    9·1 answer
  • 1. Evaluate the Riemann sum for (x) = x3 − 6x, for 0 ≤ x ≤ 3 with six subintervals, taking the sample points, xi, to be the righ
    13·1 answer
  • A resturant reserved 85 halves of cantaloupe during a busy weekend. How many whole cantaloupes is this?
    5·1 answer
  • I need help with this !!
    6·1 answer
  • Add the linear expressions: 2n + 6 and 6n -2
    7·1 answer
  • With sales tax, it costs $707 to buy a $700 dining room table. What is the sales tax
    9·1 answer
  • Good luck to anyone that has a week left of school and just now starting e2020 projects!
    13·2 answers
  • Divide.
    9·1 answer
  • I need help with the top 3 plz
    7·1 answer
  • What is the value of x?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!