9 opt maths (Final term )

Find the value of sec(270-x).

• sec x

• cosec x

• - Cosx

• None of the above.

If Tn =5n-4 then third term of the sequence is

• 19

• -11

• 11

• -19

If the determinant of a matrix is 1 then it is calld:

• Identity matrix

• Non singular Matrix

• null Matrix

• singular matrix

The value of cosec135 is

• 2

• squareroot of 2

• 1/2

• 1

If f(x)=4x+3 then what is the value of f(-2)?

• 11

• 2

• -5

• 5

Find the image ofA (2,-3)under the rotation about +ve 270 about origin.

• (-3,2)

• (-3,-2)

• (3,-2)

• (-2,3)

The distance between two points A(4,-1) and B (8,2) is:

• 5 units

• 25 units

• 4 units

• -5 units

The image of point P(x,y) under -ve90 about center (a,b) is :

• (x-a+b,-y-a+b)

• (y+a-b,x+a+b)

• (y+a-b,-x+a+b)

• (-y+a-b,x+a+b)

The equation of a straight line x/a+y/b =1 is refers:

• Normal form

• Section formula

• Slope intercept form

• Double intercept form

Which of the following is false statements?

• Interchanging process of rows and column is known as transposation of matrix.

• If the object and image is same then that types of transposation is calld identity transposation and the point is calle inveriant point

• If f:A to B is a function then all elements of set A are calld Range.

• both options 1 and 2