## Operation of writing column as rows and rows as column is termed as

• A. derivation
• B. integration
• C. transportation
• D. inversion

## Vector has a tip which is called its

• A. initial point
• B. critical point
• C. terminal point
• D. final point

## Cosine and sines trigonometric systems are

• A. orthogonal
• B. at 30°
• C. at 360°
• D. at 240°

## Integral over curves are called

• A. line integral
• B. surface integral
• C. triple integral

## Family of curves that intersect another family of curves at right angles is called

• A. orthogonal
• B. orthotomic
• D. cissoids

## An integral over a three dimensional domain is called

• A. line integral
• B. surface integral
• C. double integral
• D. volume integral

## A matrix which is formed by turning all rows of a given matrix into columns and vice-versa is called

• A. skew matrix
• B. transpose matrix
• C. augmented matrix
• D. identity matrix

## Matrix which is a square matrix whose transpose equals its negative is called

• A. symmetric matrix
• B. skew symmetric matrix
• C. augmented matrix
• D. triangular matrix

## In z=r(cosθ+isinθ), θ is called

• A. absolute value
• B. primary value
• C. secondary value
• D. argument