TCS
Company
Numerical Ability
Arithmetic
X^2-16>0
range of x?
Read Solution (Total 22)
-
- x can be (-infinity to -4)union (4 to infinity)
- 10 years agoHelpfull: Yes(22) No(2)
- -----> X^2 >16
-----> X > 4 or X > -4
-----> X > -4 can be written as -4 < X - 10 years agoHelpfull: Yes(10) No(1)
- x^2 > 16
x = (-4,4) - 10 years agoHelpfull: Yes(2) No(2)
- x^2-16>0
(x+4)(x-4)
x=4 or x=-4
therefore x ranges from -4 - 10 years agoHelpfull: Yes(1) No(1)
- Range of x -4>x>4
- 10 years agoHelpfull: Yes(1) No(5)
- x^2>16
=>mod(x)>4
=>x4 - 10 years agoHelpfull: Yes(0) No(1)
- X^2-16>0
X^2>16
-4>x and x - 10 years agoHelpfull: Yes(0) No(0)
- X^2-16>0
X^2>16
-4>x and x - 10 years agoHelpfull: Yes(0) No(1)
- X^2-16>0
X^2>16
-4>x and x - 10 years agoHelpfull: Yes(0) No(1)
- x>4 or x
- 10 years agoHelpfull: Yes(0) No(1)
- options are
a)-4>x>4
b)-4>x - 10 years agoHelpfull: Yes(0) No(1)
- x>4 or x
- 10 years agoHelpfull: Yes(0) No(0)
- x^2-16>0
=x^2>16
=x>+4 or x>-4
=the range is -4 - 10 years agoHelpfull: Yes(0) No(0)
- (-infinity,-8)U(8,infinity)
- 10 years agoHelpfull: Yes(0) No(0)
- the range is 5
- 10 years agoHelpfull: Yes(0) No(0)
- x^2-16>0
(x-4)(x+4)>0
so -4 - 10 years agoHelpfull: Yes(0) No(1)
- both pairs must be greater than 0 if any of following less than 0 then whole value will be less than 0 (x-4)(x+4)>0 so range of x is -4 to plus infinity
- 10 years agoHelpfull: Yes(0) No(0)
- x^2-16>0
x=+-4 - 10 years agoHelpfull: Yes(0) No(0)
- X^2-16>0
X^2>16
=|X|>4
or
X>4 or X - 10 years agoHelpfull: Yes(0) No(0)
- Range will be ,
-4 < X < +4 - 9 years agoHelpfull: Yes(0) No(1)
- x>4 and x
- 9 years agoHelpfull: Yes(0) No(0)
- x^2-16>0
x^2>16
x^2>4^2
i.e -4>x>4 - 9 years agoHelpfull: Yes(0) No(1)
TCS Other Question