Q. 115.0( 2 Votes )
Mark the correct A. {1, 2, 3, 4, 5}
B. {1, 2, 3, 4, 5, 6}
C. {1, 2, 3, 4}
D. {1, 2, 3}
Answer :
Given that f(x) = 7–xPx–3
Here, 7-x ≥ x-3
⇒ 10 ≥ 2x
⇒ 5 ≥ x
So, domain = {3, 4, 5}
Range = {4P0, 3P1, 2P2} = {1, 3, 2}
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