mathematical methods u.g

1.Two matrices A and B are equal if their orders are the same and their corresponding elements are equal .it is called equality matrix.

• true

• false

2.Null matrix is also called as ____ matrix.

• zero

• triangular

• equality

3.A matrix with only one coloumn is called a _____ matrix.

• column

• row

• unit

• diagonal

4.If every element above or below the main diagonal is zero it is called a _____.

• square

• triangular

• column

5. 5. A Determinant of three rows and three columns is called a determinant of _______ order.

• third

• second

• first

• fourth

6.The value of a determinant does not change if its rows and columns are interchanged.

• true

• false

7.An array of numbers in rectangle brackets is called ________.

• set

• matrix

• set theory

8.Identity Matrix is known as _______ matrix.

• two

• unit

• one

• three

9.Division Rule is also called as Quotient Rule.

• true

• false

10..Y = 4X⁵+3X+5 find dy/dx?

• 20x⁴+2

• 20x⁴+3

• 20x⁶+3