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kiruha [24]
3 years ago
12

Use the identity a^3+b^3=(a+b)^3−3ab(a+b) to determine the sum of the cubes of two numbers if the sum of the two numbers is 4 an

d the product of the two numbers is 1.
Mathematics
1 answer:
olga55 [171]3 years ago
3 0

Your identity says ...

... sum of cubes = (sum)³ -3(product)(sum)

... = 4³ -3·1·4

... = 64 -12 = 52

_____

The two numbers are 2±√3, and the sum of their cubes is indeed 52.

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Answer: About 3.06

Step-by-step explanation:

  We can use trigonometry functions to solve for AC. Let the ?, representing AC, be "x" in our mathematical work.

  Since we have the hypotenuse and x is adjacent to the angle given, I am going to use cosine.

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Zinaida [17]

▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪

Here's the solution :

slope of the line is equal to :

  • \dfrac{y_2 - y_1}{x_2 - x_1}

  • \dfrac{4 - 1}{0 - ( - 1)}

  • \dfrac{3}{1}

  • 3

slope of given line = 3

7 0
3 years ago
Read 2 more answers
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