evantoby1 evantoby1
  • 23-05-2022
  • Mathematics
contestada

The value of ( sqrt 5 + sqrt 2 )( sqrt 5 - sqrt 2 )is: (a) 10 (b) 7 (c) 3 (d) sqrt(3

Respuesta :

goddessboi goddessboi
  • 23-05-2022

Answer:

C) 3

Step-by-step explanation:

This is just a differences of squares:

[tex](a+b)(a-b)=(a^2-b^2)\\\\(\sqrt{5}+\sqrt{2})(\sqrt{5}-\sqrt{2})=(\sqrt{5}^2-\sqrt{2}^2)=5-2=3[/tex]

Answer Link
profereyes12122
profereyes12122 profereyes12122
  • 23-05-2022

Answer:

(c) 3

Step-by-step explanation:

[tex](\sqrt{5} +\sqrt{2} )(\sqrt{5} -\sqrt{2} )=(\sqrt{5} )^{2} -(\sqrt{2} )^{2} =5-2=3[/tex]

Hope this helps

Answer Link

Otras preguntas

a circle has a radius of 15 cm determine the excavt area
How to do the math for 2d -9= -29
How does the point of view in "The Raven" affect the reader's interpretation of the text? It is written in first and third person so the reader understands the
IS IT A B C D (pls help me i am desprite
The table shows the height of water in a pool as it is being filled. The slope of the line through the points is 2. Which statement describes how the slope rela
The _____ on Chile's Pacific coast is one of the driest regions on Earth. It can go for decades without receiving any rainfall.
Find the 10th term of geometric sequence whose common ratio is 3/2 and whose first term is 5
Pls help me with this
Pls help for exam A. 2/3 x 1/3 = 2/3 B. 1/3 x 2 = 2/3 C. 1/3 + 2 = 2/3 D. 2/3 + 2 =2 2/3
Match the features to either the Old Left political view or the New Left political view to show how the left changed in the 1960s.