IIT JEE / PMT Module Test 1 : Mathematics : Quadratic Relation and Function

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Comprehension A quadratic expression f(x) whose leading co-efficient is positive may take both positive and negative values. Indeed if the corresponding equation has real roots c1 and c2, then the expression will be negative for all values of x between c1 and c2. From which we can conclude that the expression is negative for all x lying in the interval (d1, d2) if c1 (2, ()
(-2, 2)
(-8, 2)
Comprehension A quadratic expression f(x) whose leading co-efficient is positive may take both positive and negative values. Indeed if the corresponding equation has real roots c1 and c2, then the expression will be negative for all values of x between c1 and c2. From which we can conclude that the expression is negative for all x lying in the interval (d1, d2) if c1 it is necessary that f(x)>0 for all x.
it is sufficient that f(x)>0 for all x.
it is necessary and sufficient that f(x)>0 for all x.
None of these
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m>2
m=0
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A,B
B
C
A,B & D

none of these
Normal type of MCQ with one correct option Sum of the roots of the equation x2 + |x| ( 6 = 0 is
0
( 1
5
none of these
Normal type of MCQ with one correct option Sum of the roots of the equation x2 + |x| ( 6 = 0 is
0
( 1
5
none of these
Normal type of MCQ with one correct option Which of the following is a polynomial?
none of these
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cena

excellent approach especially the expl for answers is superb

4141 days 11 hours 31 minutes ago

bljeet

simply the best

4373 days 15 hours 18 minutes ago

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