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
omeli [17]
2 years ago
14

If a+1/a=3 then find the value of a-1/a​

Mathematics
1 answer:
kenny6666 [7]2 years ago
4 0

Answer:

  • √5

Step-by-step explanation:

<u>Given a + 1/a = 3, find its square:</u>

  • a² + 2a*1/a + 1/a² = 9
  • a² + 1/a² = 9 - 2 = 7

<u>Now find the square of (a - 1/a):</u>

  • a² - 2a*1/a + 1/a² =
  • a² + 1/a² - 2

<u>Substitute the value from the first square:</u>

  • 7 - 2 = 5

<u>Since (a - 1/a)² = 5, its square root is:</u>

  • a - 1/a = √5
You might be interested in
What’s the fraction of 65% in its simplest form
patriot [66]

Answer:

13/20

Step-by-step explanation:

65%=65/100

65/100=13/20

5 0
3 years ago
Read 2 more answers
Explain why the sum of the two distances to the foci are always the same.
Verdich [7]
Hello,

one of two<span> fixed points inside an ellipse from which the </span>sum<span> of the </span>distances<span> to any point on the ellipse is constant. </span>
6 0
3 years ago
Read 2 more answers
Round 12.96 to 1 decimal point
Deffense [45]
12.96 can be rounded to 13 if you're rounding to the nearest tenth and ones digit. If it is the tens digit, 12.96 can be rounded to 10.
8 0
3 years ago
Read 2 more answers
Divide 3x ^ 3 + 7x ^ 2 - 8x + 48 by x + 4
Akimi4 [234]

Answer: 3x 3 +7x  2 +40x+4

Step-by-step explanation: Hope that helps

8 0
3 years ago
Which of the following is true about the expression sqrt3*sqrt2
Mars2501 [29]

Answer:

<h2>Option B is the right answer.</h2>

Step-by-step explanation:

\sqrt{3} , \sqrt{2} are two irrational numbers, that is, they can not be shown as the fraction of two integers.

\sqrt{3} \times\sqrt{2} = \sqrt{6}

\sqrt{6} is also a irrational number, since it also can not be represented as the fraction of integers.

Hence, the given expression represent the product of two irrational number and is equivalent to an irrational number.

3 0
3 years ago
Read 2 more answers
Other questions:
  • Could someone explain this to me?
    8·2 answers
  • Please help me with these questions I’m not very good with This topic
    13·2 answers
  • 7,794,102 is even or odd
    5·1 answer
  • What are the ODDS of rolling a number greater than 3 on a six-sided die?<br> (Odds, NOT probability)
    15·2 answers
  • Use the distributive property to expand the expression. 3(2x−6)3(2x−6) enter your answer in the box.
    14·1 answer
  • Problem 1 :<br>Given: HJ= 4x + 9, JK = 30 + 3, and KH = 33 Find: x, HJ, and JK​
    15·1 answer
  • Help me with this please<br> who ever is correct gets Brainliest
    15·2 answers
  • Recopier et compléter le tableau suivant
    7·1 answer
  • You are playing a board game and your playing piece begins the game at START. You roll a single number cube numbered 1 to 6 to f
    11·1 answer
  • In the diagram, is parallel to. Also, is drawn such that the length of is half the length of. If sin A = 0.5, then what is sin E
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!