Functions 1 Question 16

17.

Let y=(x+1)(x−3)(x−2).

Find all the real values of x for which y takes real values.

(1980,2M)

Show Answer

Answer:

Correct Answer: 17. x∈[−1,2)∪[3,∞)

Solution:

  1. Since, y=(x+1)(x−3)(x−2) takes all real values only

 when (x+1)(x−3)(x−2)≥0

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