Which of the following is not applicable for a complex number?
Addition
Subtraction
division
inequality
If x2 + ax + b = 0 and x2 + bx + a = 0 have a common root, then the value of (a + b) is :
1
-1
2
-1/2
Evaluate tan 65o Evaluate tan 65o
cot 25o Evaluate tan 65o
cot 25o
1/ 2
½
2
1
tan 3A – tan 2A – tan A =
tan 3A tan 2A tan A
- tan 3A tan 2A tan A
tan 3A + tan 2A + tan A
tan 3A tan 2A
The equation 2 x 2?3x?1=0 has
maginary roots imaginary roots
irrational roots
rational roots
integer root
If z and 1/z
are the roots of a quadratic equation then I z I =
0
1
2
2
Which of the following objects has the greatest inertia?
car parked on the side of the road
a baseball during a pop fly
a computer sitting on a desk
A woman running on a track
Which mutation is heritable?
Somatic
Lethal
Germinal
Phenotypic
Which of the following will be the least soluble in water?
NaCl
Na2S
MgCl2
MgS
A rection A2 + B2 ----> 2AB occurs by the following steps:
A2 ---------> A + A (slow)
A + B2 ----------> AB + B (fast)
A + B --------> AB (fast)
The order of reaction is:
3/2
1
Zero
2
The yellowish fluid colostrum secreted by mother during
the initial days of lactation has abundant ________ antibodies to protect the
infant.
IgA
IgG
IgM
IgE