Math, asked by nishchaykumar009, 9 months ago

Range of f(x) = –|2x 2 – 4| is

Answers

Answered by hrn21agmailcom
11

Answer:

( 0, -∞ )

Step-by-step explanation:

f(x) = –|2x^2 – 4|

= -2 | x^2 – 2|

= -2 | x + √2| | x - √2|

= 0 ; x = ±√2

< 0 ; x € (-∞, -√2) U ( √2, ∞)

= ( 0, -4) ; x€ ( -√2, √2)

hence...

R [f((x)] =(-∞,0] U [0,-4] U [-4,0]U[0,-∞)

Answered by inderjeet2266
1

Answer:

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