If f(x) is a polynomial function satisfying the condition f(x). f(1/x) = f(x) + f(1/x) and f(2) = 9 then -

If R be a relation '<' from A = {1, 2, 3, 4} to B = {1, 3, 5} i.e. (a, b) $element of$ R iff a < b, then $R O R to the power of negative 1 end exponent text end text$ is $text-end text$

Values of $R O R to the power of negative 1 end exponent text end text$ are {(3, 3), (3, 5), (5, 3), (5, 5)}

If R be a relation '<' from A = {1, 2, 3, 4} to B = {1, 3, 5} i.e. (a, b) $element of$ R iff a < b, then $R O R to the power of negative 1 end exponent text end text$ is $text-end text$

Values of $R O R to the power of negative 1 end exponent text end text$ are {(3, 3), (3, 5), (5, 3), (5, 5)}

Which one of the following relations on R is equivalence relation

Let R = {(x, y) : x, y $element of$ A, x + y = 5} where A = {1, 2, 3, 4, 5} then

Hence, the given relation is not reflexive, symmetric and not transitive

Let R = {(x, y) : x, y $element of$ A, x + y = 5} where A = {1, 2, 3, 4, 5} then

Hence, the given relation is not reflexive, symmetric and not transitive

Let $R subscript 1 end subscript text , end text$ be a relation defined by $R subscript 1 end subscript equals left curly bracket left parenthesis a comma b right parenthesis ∣ a greater or equal than b semicolon a comma b element of R right curly bracket text . end text$ Then R is

Hence, the given relation is Reflexive, transitive but not symmetric.

Let $R subscript 1 end subscript text , end text$ be a relation defined by $R subscript 1 end subscript equals left curly bracket left parenthesis a comma b right parenthesis ∣ a greater or equal than b semicolon a comma b element of R right curly bracket text . end text$ Then R is

Hence, the given relation is Reflexive, transitive but not symmetric.

The relation R defined in N as aRb $left right double arrow$ b is divisible by a is

Hence, the given relations is reflexive but not symmetric.

The relation R defined in N as aRb $left right double arrow$ b is divisible by a is

Hence, the given relations is reflexive but not symmetric.

Electric power =

n equal resistors are first connected in series and then in parallel. The ratio of the equivalent resistance in the two cases is

The equivalent resistance of the network shown in the adjoining figure between the points A and B is

A current of 4.8 A is flowing in a conductor. The number of electrons passing through any cross-section per second is

Equivalent resistance between points P and Q in the adjoining figure is

The S.I. unit of surface charge density is _____.

A car of mass 1500 kg. If the speed of car is changed from 30 km/h to 60 km/h, then the work done by car is

A body of mass 2 kg is held 3 m above the floor of a room. The potential energy of the body relative to the floor is (g = 9.8 m/s²)

A force of 5 N acts on a body of weight 9.8 N. The acceleration produced in m/s² is