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AP EAMCET · Maths · Functions

Let D=x: fx=x-|x|x-[x] is defined} and C be the range of the real function gx=2x4+x2. Then DC=

  1. A -12,12
  2. B 0,12
  3. C +
  4. D +-+
Verified Solution

Answer & Solution

Correct Answer

(B) 0,12

Step-by-step Solution

Detailed explanation

The given function is fx=x-|x|x-[x] Now, x-|x| ≥ 0 & x-[x]>0 ⇒x≥|x| and x>[x] Therefore, x ∈ℝ+-(all integers) Again, gx=2x4+x2 ⇒y=2x4+x2 Rewrite the above equation. yx2-2x+4y=0 ⇒x=2±4-16y22y From…
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