Maths-
General
Easy
Question
If
is to be square root of two rowed unit matrix, then
should satisfy the relation-
The correct answer is: 
= 
= 
= 
Hence choice (B) is true.
Related Questions to study
maths-
If Ar =
where r is a natural number then |A1| + |A2| + |A3| +……+ |A2006| must be equal to-
If Ar =
where r is a natural number then |A1| + |A2| + |A3| +……+ |A2006| must be equal to-
maths-General
maths-
If A =
, then An (where n
N) is
If A =
, then An (where n
N) is
maths-General
maths-
If A and B are two skew symmetric matrices of order n, then-
If A and B are two skew symmetric matrices of order n, then-
maths-General
chemistry-
The correct order of acidic strength is:
The correct order of acidic strength is:
chemistry-General
maths-
Let E (
) =
. If
and
differs by an odd multiple of
/2,then E(
) E(
) is a -
Let E (
) =
. If
and
differs by an odd multiple of
/2,then E(
) E(
) is a -
maths-General
maths-
If A is a n rowed square matrix, A = [aij] where aij=
, [ ] denotes greatest integer, then det (A) =
If A is a n rowed square matrix, A = [aij] where aij=
, [ ] denotes greatest integer, then det (A) =
maths-General
maths-
If A =
, then A + 2AT equals -
If A =
, then A + 2AT equals -
maths-General
maths-
If
is to be square root of two rowed unit matrix then
,
and
should satisfy the relation
If
is to be square root of two rowed unit matrix then
,
and
should satisfy the relation
maths-General
maths-
If the matrix Mr is given by Mr =
, r = 1, 2, 3 .... Then the value of det (M1) + det(M2) + .... + det (M2009) is
If the matrix Mr is given by Mr =
, r = 1, 2, 3 .... Then the value of det (M1) + det(M2) + .... + det (M2009) is
maths-General
maths-
The number of solutions of the matrix equationA2 =
is -
The number of solutions of the matrix equationA2 =
is -
maths-General
chemistry-
Helium was discovered by:
Helium was discovered by:
chemistry-General
chemistry-
For a general reaction given, below the value of solubility product can be given as :

or 
Solubility product gives us not only an idea about the solubility of an electrolyte in a solvent but also helps in explaining concept of precipitation and calculation of H+ ion, OH- ion. It is also useful in qualitative analysis for the identification and separation of basic radicals.
Which metal sulphides can be precipitated from a solution that is 0.01 M in Na+ , Zn2+, Pb2+ and Cu2+ and 0.10 M in H2S at a pH of 1.0 ?

For a general reaction given, below the value of solubility product can be given as :

or 
Solubility product gives us not only an idea about the solubility of an electrolyte in a solvent but also helps in explaining concept of precipitation and calculation of H+ ion, OH- ion. It is also useful in qualitative analysis for the identification and separation of basic radicals.
Which metal sulphides can be precipitated from a solution that is 0.01 M in Na+ , Zn2+, Pb2+ and Cu2+ and 0.10 M in H2S at a pH of 1.0 ?

chemistry-General
chemistry-
A weak acid (or base) is titrated against a strong base (or acid), volume v of strong base (or acid) is plotted against pH of the solution. The weak protolyte i.e acid (or base) could be

A weak acid (or base) is titrated against a strong base (or acid), volume v of strong base (or acid) is plotted against pH of the solution. The weak protolyte i.e acid (or base) could be

chemistry-General
maths-
Let A =
and A' . A = I, then the value of
is -
Let A =
and A' . A = I, then the value of
is -
maths-General
maths-
If A is a n rowed square matrix, A = [aij] where aij =
, [ ] denotes greatest integer, then det (A) =
If A is a n rowed square matrix, A = [aij] where aij =
, [ ] denotes greatest integer, then det (A) =
maths-General