Recent questions tagged concepts

True or False: Matrix multiplication is commutative.

asked Dec 24, 2012 by sreemathi.v

1 answer

True or False: Matrix addition is associative as well as commutative.

asked Dec 24, 2012 by sreemathi.v

1 answer

True or False: Matrices of different order can not be subtracted.

asked Dec 24, 2012 by sreemathi.v

1 answer

True or False: Two matrices are equal if they have same number of rows and same number of columns.

asked Dec 24, 2012 by sreemathi.v

1 answer

True or False: Matrices of any order can be added.

asked Dec 24, 2012 by sreemathi.v

1 answer

True or False: A matrix denotes a number.

asked Dec 24, 2012 by sreemathi.v

1 answer

True or False:The graph of inverse trigonometric function can be obtained from the graph of their corresponding trigonometric function by interchanging x and y axes.

asked Dec 21, 2012 by sreemathi.v

1 answer

True or False: The least numerical value, either positive or negative of angle $\theta$ is called principal value of the inverse trigonometric function.

asked Dec 21, 2012 by sreemathi.v

1 answer

True or False: The domain of trigonometric functions can be restricted to any one of their branch(not necessarily principal value) in order to obtain their inverse function.

asked Dec 21, 2012 by sreemathi.v

1 answer

True or False: A binary operation on a set has always the identity element.

asked Dec 20, 2012 by sreemathi.v

1 answer

True or False: Every function is invertible.

asked Dec 20, 2012 by sreemathi.v

1 answer

True or False: The composition of functions is associative

asked Dec 20, 2012 by sreemathi.v

1 answer

True or False: The composition of functions is commutative.

asked Dec 20, 2012 by sreemathi.v

1 answer

True or False: An integer m is said to be related to another integer n if m is a integral multiple of n.This relation in Z is reflexive,symmetric and transitive.

asked Dec 20, 2012 by sreemathi.v

1 answer

True or False: Every relation which is symmetric and transitive is also reflexive.

asked Dec 20, 2012 by sreemathi.v

1 answer

Let X represent the difference between the number of heads and the number of tails obtained when a coin is tossed 6 times. What are possible values of X?

asked Nov 27, 2012 by balaji.thirumalai

1 answer

If A and B are two events such that $A ⊂ B$ and $P(B) ≠ 0$, then which of the following is correct?

asked Nov 27, 2012 by balaji.thirumalai

1 answer

Two events A and B will be independent, if which of the following is true?

asked Nov 27, 2012 by balaji.thirumalai

1 answer

If A and B are events such that P(A|B) = P(B|A), then which of the following is true?

asked Nov 27, 2012 by balaji.thirumalai

1 answer

Matrices $A$ and $B$ will be inverse of each other only if

asked Nov 23, 2012 by pady_1

1 answer

Write down a unit vector in XY-plane, making an angle of 30° with the positive direction of x-axis.

asked Nov 2, 2012 by balaji.thirumalai

1 answer

Ask Questions, Get Answers

True or False: Matrix multiplication is commutative.

True or False: Matrix addition is associative as well as commutative.

True or False: Matrices of different order can not be subtracted.

True or False: Two matrices are equal if they have same number of rows and same number of columns.

True or False: Matrices of any order can be added.

True or False: A matrix denotes a number.

True or False:The graph of inverse trigonometric function can be obtained from the graph of their corresponding trigonometric function by interchanging x and y axes.

True or False: The least numerical value, either positive or negative of angle $\theta$ is called principal value of the inverse trigonometric function.

True or False: The domain of trigonometric functions can be restricted to any one of their branch(not necessarily principal value) in order to obtain their inverse function.

True or False: A binary operation on a set has always the identity element.

True or False: Every function is invertible.

True or False: The composition of functions is associative

True or False: The composition of functions is commutative.

True or False: An integer m is said to be related to another integer n if m is a integral multiple of n.This relation in Z is reflexive,symmetric and transitive.

True or False: Every relation which is symmetric and transitive is also reflexive.

Let X represent the difference between the number of heads and the number of tails obtained when a coin is tossed 6 times. What are possible values of X?

If A and B are two events such that \(A ⊂ B\) and \(P(B) ≠ 0\), then which of the following is correct?

Two events A and B will be independent, if which of the following is true?

If A and B are events such that P(A|B) = P(B|A), then which of the following is true?

Matrices $A$ and $B$ will be inverse of each other only if

Write down a unit vector in XY-plane, making an angle of 30° with the positive direction of x-axis.