ISC (Commerce) Class 12 - CISCE Important Questions

Write the negation of the following statements :
(a) Radha likes tea or coffee.
(b) `∃x cc` R such that x + 3 ≥ 10.

If A = `[(1,2), (1,3)]`, find A² - 3A

If the matrix `((6,-"x"^2),(2"x"-15 , 10))` is symmetric, find the value of x.

If A = `[[3,1] , [7,5]]`, find the values of x and y such that A² + xI₂ = yA.

If A is a square matrix of order 3, then |2A| is equal to ______.

If A is a square matrix of order 3, then |2A| is equal to ______.

For what value of k the matrix `[(0, k),(-6, 0)]` is a skew symmetric matrix?

Assertion: Let the matrices A = `((-3, 2),(-5, 4))` and B = `((4, -2),(5, -3))` be such that A¹⁰⁰B = BA¹⁰⁰

Reason: AB = BA implies AB = BA for all positive integers n.

Assertion: Let the matrices A = `((-3, 2),(-5, 4))` and B = `((4, -2),(5, -3))` be such that A¹⁰⁰B = BA¹⁰⁰

Reason: AB = BA implies AB = BA for all positive integers n.

If A and B are symmetric matrices of the same order, then AB – BA is ______.

A matrix which is both symmetric and skew symmetric matrix is a ______.

A matrix which is both symmetric and skew symmetric matrix is a ______.

Briefly explain the significance of human resource management to an enterprise.

Which part of management is concerned with the employees and their interrelationship within the organisation?

Human Resource Management is ______ in nature as it involves the application of knowledge from Sociology, Anthropology, Psychology, Economics etc.

Which characteristic of Human Resource Management deals with providing competent employees to an organisation, both now and in the future?

Human Resource Management is significant to an enterprise since it provides psychological satisfaction to people.

Name the two sources of e-recruitment. Briefly explain any one of them.

Give two points of distinction between external sources and internal sources of recruitment.

Answer the following question briefly:
How can transfer be used as a punishment by the employer?