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A relation R on a set A is said to be an equivalence relation if and only if the relation R is reflexive, symmetric and transitive. Reflexive: A relation is said to be reflexive, if (a, a) ∈ R, for every a ∈ A.

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Define an equivalence relation R

Posted by Yogesh Kerawat 4 years, 2 months ago

CBSE > Class 12 > Mathematics

1 answers

Sia ? 4 years, 2 months ago

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X⅔(2x-1)

Posted by Binayak Dutta 4 years, 2 months ago

CBSE > Class 12 > Mathematics

1 answers

Taranveer Singh 4 years, 2 months ago

2x^5/3 - x²/³

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If matrix A is of order 3×5, then the each column of transpose of matrix A contains elements: *

Posted by Sukhpal Singh 4 years, 2 months ago

CBSE > Class 12 > Mathematics

5 answers

Magdalin Felicita 4 years, 2 months ago

5×3

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Ankit Mishra 4 years, 2 months ago

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Gaurav Kumar 4 years, 2 months ago

5x3

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Aditya Kumar Pandit 4 years, 2 months ago

5 × 3

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Rohit Gurjar 4 years, 2 months ago

5x3

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What is contunity of function

Posted by Prasant Offical 4 years, 2 months ago

CBSE > Class 12 > Mathematics

1 answers

Sia ? 4 years, 2 months ago

a continuous function is a function that does not have any abrupt changes in value, known as discontinuities. More precisely, a function is continuous if arbitrarily small changes in its output can be assured by restricting to sufficiently small changes in its input.

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Ronnie has a bag containing 7red and 9green balls.from it ,he out 6balls simultaneously at random.the probability that 4of them are red and the rest are green is?

Posted by Divyansh Singh 4 years, 2 months ago

CBSE > Class 12 > Mathematics

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Divide 1000 3542

Posted by Aditi Dixit 4 years, 2 months ago

CBSE > Class 12 > Mathematics

1 answers

Gaurav Kumar 4 years, 2 months ago

1/3.542

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Log10²³

Posted by Thoibi Langpoklakpam 4 years, 2 months ago

CBSE > Class 12 > Mathematics

3 answers

Aditi Ahuja 4 years, 2 months ago

Log10^23 23 log 10 Log10=1 Ans- 23

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Nishant Lamba 4 years, 2 months ago

Cbse

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Ramnivas Verma 4 years, 2 months ago

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If A and B are symmetric matrix prove that AB - BA is a slew symmetric matrix.

Posted by Ayushi Tripathy 4 years, 2 months ago

CBSE > Class 12 > Mathematics

1 answers

Tanvir Singh 😊😀😊 4 years, 2 months ago

If A and B are symmetric then A=A'and B=B' AB-BA=A'B'-B'A' =(BA)'-(AB)' =(BA-AB)' =-(AB-BA)' Hence AB-BA is skew symmetric....

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What is the difference between relation and function ?is every relation a function?why?

Posted by Samayara Singh 4 years, 2 months ago

CBSE > Class 12 > Mathematics

3 answers

Prachi Agarwal 4 years, 2 months ago

Relation is the subset of Cartesian product ( A*B). Function is the subset of relation which have a unique image of every element in its domain to its co domain . No every relation is not a function as function should have unique image.

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Bhumika Agrawal 4 years, 2 months ago

No every relation is not a fun

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Aditya Birla 4 years, 2 months ago

Relation is all possible pairs formed by two set while functions are the specific pairs. Relate function as a Machine. In Machine(eg. R.O water filter) you put input(water) and you get output (pure water) but you cannot put stones in machine, machine will not accept it. Similarly function is the machine where you cannot put all values for that specific function and as output you get a value. So Every relation is not function

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From where i have to study for objective type questions of maths to get good marks

Posted by Suhani Rana 4 years, 2 months ago

CBSE > Class 12 > Mathematics