x2 -3 |x| + 2 < 0, then x belongs to ________.
( 1,2 )
( -2, -1 )
( -2, -1 ) U ( 1, 2 )
( -3, 5 )
(x2 + 1 ) ( x -2 ) 2 ( x -3 ) < 0, then x belongs to _______.
( -∞, 2) U (2, 3 )
( -∞, 3)
(2, 3 )
None of these
If a > b then _______.
a + 5 > b + 5
a - b < b - 5
a + b < b + b
Depends on a and b
If a > b then
2a > 2b
|2a | > | 2b |
-5a > -5b
If | x | < x , then:
x is a positive real number
x is a non negative real number
There is no x satisfying this inequality
x is a negative real number
If 3 < | x | < 6, then x belongs to _______.
( - 6, -3 ) U ( 3, 6 )
( - 6, 6 )
( -3, -3 ) U (3, 6 )
As sinx < x and x < tanx in ( 0,π/2 ), so in the same interval
Sinx < tanx
Sinx > tanx
sin2 x > tan 2 x
|sinx | > |tanx |
If |x| > 5, then
0 < x < 5
x < -5 or x > 5
-5 < x < 5
x > 5
( x - 1 ) > 0
( x -2 ) > 0
(x - 2 ) < 0
( x - 1 ) > 0 if ( x -2 ) > 0
If a/b < c/d, then _________,
( a/b)2 < (c/d)2
