Daję naj!Oblicz x + |x| oraz x - 2|x|.... Question from @luangelina696

March 2022 2 17 Report

Daję naj!
Oblicz x + |x| oraz x - 2|x|

hanka

$d)\\
x=\pi-2\sqrt3=\approx3,14-2\sdot1,73=3,14-3,46=-0,32$

2 votes Thanks 1

unicorn05

x = π - 2√3

√3 ≈ 1,73 ⇒ 2√3 ≈ 3,46

π ≈ 3,14

π < 2√3 ⇒ π - 2√3 < 0 ⇒ |π - 2√3| = -(π - 2√3)

Zatem:

x + |x| = π - 2√3 + |π - 2√3| = π - 2√3 - (π - 2√3) = 0

x - 2|x| = π - 2√3 - 2|π - 2√3| = π - 2√3 + 2(π - 2√3) = 3(π - 2√3) = 3π - 6√3

2 votes Thanks 1

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