AP EAMCET · Maths · Functions
Let . Then
- A
- B
- C
- D
Answer & Solution
Correct Answer
(C)
Step-by-step Solution
Detailed explanation
Let fx=x+22-2,x≥-2. Putting y=x+22-2 y=x2+4x+4-2 y=x2+4x+2 x2+4x+2-y=0 a=1, b=4, c=2-y x=-4±42-4×1×2-y2×1 x=-4±16-8+4y2×1 Then, x=-2+2+y, x≥-2 Hence, f-1x=2+x-2
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