third proportional to (x^2 - y^2) and (x-y) is?
Answers
Answer:
(x - y)/(x + y).
Step-by-step explanation:
Let the third proportional to (x² - y²) and (x - y) be P.
Therefore, (x² - y²), (x - y) and P are in proportion.
=> (x² - y²) : (x - y) = (x - y) : P
=> (x² - y²)/(x - y) = (x - y)/P
=> P = (x - y)²/(x² - y²)
=> P = (x - y)(x - y)/(x + y)(x - y)
=> P = (x - y)/(x + y).
Therefore, the third proportional to (x² - y²) and (x - y) is (x - y)/(x + y).
(⊙_⊙;) Well, the question having third is confusing, it should be 4th lol but well,
Answer:
(x - y) / (x + y)
Step-by-step explanation:
Let the third proportional to (x² - y²) and (x - y) be Z.
Therefore, (x² - y²), (x - y) and Z are in proportion.
=> (x² - y²) : (x - y) = (x - y) : Z
=> (x² - y²)/(x - y) = (x - y)/Z
Z= (x - y)²/(x² - y²)
Z= (x - y)(x - y)/(x + y)(x - y)
Z = (x - y)/(x + y).
SO it is (x - y)/(x + y).
¯\_(ツ)_/¯ sImPlE aS tHaT