Number of integral values of x satisfying the inequation xx+2≤1|x| is
see full answer
Your Exam Success, Personally Taken Care Of
1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.
An Intiative by Sri Chaitanya
a
2
b
8
c
4
d
3
answer is C.
(Unlock A.I Detailed Solution for FREE)
Best Courses for You
JEE
NEET
Foundation JEE
Foundation NEET
CBSE
Detailed Solution
x|x|x+2≤1x|x|−x−2x+2≤0 Case I: x∈[0,∞) x2−x−2x+2≤0⇒ (x−2)(x+1)x+2≤0 ⇒ 0≤x≤2 ∵x∈[0,∞)i.e., integral values of x are 0, 1 , 2. Case II: x∈(−∞,0) −x2−x−2x+2≤0⇒ −2