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Dovator [93]
2 years ago
5

If H be the H.M. between a and b. prove that 1/H-a + 1/H-b = 1/a+1/b​

Mathematics
1 answer:
____ [38]2 years ago
3 0

if susjwmaoakkaajKIJahabsbzh

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A number cube with faces labeled 1 to 6 is rolled once.
Zepler [3.9K]

Answer:

a)  A ∪ B = {2, 4, 5, 6}

b)  A ∩ B = {6}

c)  \sf B^c = {1, 3, 5}

Step-by-step explanation:

Set notation is used in math to list numbers, objects or outcomes.

It uses <u>curly brackets</u> called "braces". Objects placed within the braces are the elements of the set.

The listing method of <u>set notation</u> simply lists the numbers in the set.

The three dots "..." means it is infinite (goes on forever).

Given:

  • A number cube with faces labeled 1 to 6.

Therefore the set of all possible outcomes is {1, 2, 3, 4, 5, 6}.

<u>Event A</u>

The number rolled is <u>greater than 4</u>.

Therefore, the set of outcomes for event A is {5, 6}.

<u>Event B</u>

The number rolled is <u>even</u>.

Therefore, the set of outcomes for event B is {2, 4, 6}.

<u>Part (a)</u>
Event "A or B" means the outcomes in A or B or both.

⇒ A ∪ B = {2, 4, 5, 6}

<u>Part (b)</u>

Event "A and B" means the outcomes in both A and B.

⇒  A ∩ B = {6}

<u>Part (c)</u>

The complement of event B means everything that is not in B.

\sf \implies B^c =<em> </em>{1, 3, 5}

Learn more about set notation here:

brainly.com/question/27913822

4 0
1 year ago
What is the value of (8 – 3)!? A. 336 B. 40,314 C. 5 D. 120
Tom [10]
Anything that is inside the perenthasis are just like a regular math problem, so your answer should be:
C. 5
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iren2701 [21]

Answer:

C: 3 root 3

Step-by-step explanation:

got it right on edge

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A set of average city temperatures in October are normally distributed with a mean of
zubka84 [21]
I have concluded the answer is a
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2 years ago
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What is the initial value of the function represented by this table?
lakkis [162]

Answer:

Option D. 5

Step-by-step explanation:

we know that

The initial value of the function is the y-intercept, so is the value of the function when the value of x is equal to zero

In this problem observing the table

For x=0

The value of y is equal to y=5

therefore

The initial value is 5

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