Question

If |x2 - 2x - 8| + |x2 + x - 2| = 3|x + 2|, then the set of all
real values of x is
(1)[1,4] U {-2) (2)[1,4]
(3)[-2,1] U [4,00) (4)(-00, -2] [1,4]​

Answer 1

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ANSWER

(sinα)x

2

−2x+b≥2⇒(sinα)x

2

−2x+b−2≥0

4−4(b−2)sinα<0⇒b>

sinα

1

+2

As −1≤sinα≤1⇒−1≤

sinα

1

≤1

⇒1≤2+

sinα

1

<3⇒1<b≤3

beware of some sensitive content in this app btw...

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