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Number System
Mutiple choice questions
1➤ What is value of 1/√2
3➤ 1/3 is terminating decimal or non terminating decimal
4➤ Two rational numbers between 2/3and 5/3 are
6➤ If x= 2+√3 then (x+1/x) equals to
7➤ Add 5√2+3√3 and 2√2-5√3
8➤ What is the value of (√11-√7)(√11+√7) a) 4
9➤ Which of the following is a rational number?
10➤ Simplified value of (125)^-1/3
Que 1
The zero of the polynomial (2x+5) is
a) 2/5
b) 5/2
c) 0
d) -5/2
Ans (d)
Que 2
The remainder obtained when the polynomial p(x) is divided by (b-ax)
a) p(-b/a)
b) p(a/b)
c) p (b/a)
d) p(-a/b)
Ans (c)
Que 3
Which of the following is a polynomial in x
a) x+1/x
b)x^2+√x
c) x+√2x^2+1
d) √3x+1
Ans (c)
Que 4
Which of the polynomial has (-3) as a zero
a) x-3
b) x^2-9
c) x^2-3x
d) x^2+3
Ans ( b)
Que 5
The value of the polynomial x^2-x-1 at x=-1 is
a) -3
b) 1
c) -1
d) 0
Ans ( b)
Que 6
The remainder when x^2+2x+1 is divided by (x+1) is
a) 4
b) 0
c) 1
d) -2
Ans (b)
Que 7
The coefficient of x^2 in the product
(x-1)(1-2x) is
a) 3
b) 2
c)(-2)
d)(-3)
Ans (c)
Que 8
The degree of polynomial 2-5y+x^2 is
a) 2
b) 1
c) 5
d) 0
Ans (2)
Que 9
Degree of zero polynomial is
a) 0
b) 1
c) natural number
d) not defined
Ans ( d)
Que 10
Degree of which polynomial is zero
a) x
b) 15
c) x+1
d) x^2+ 1
Ans ( b )
Que 11
If x^2+kx+6=(x+2)(x+3) then value of x is
a) 1
b) 3
c) 5
d ) 0
Ans (c)
Que 12
Zero of the polynomial cx+d is
a) (-d)
b) (-c)
c) (-d/c)
d) (-7)
Ans ( c)
Que 13
√2 is a polynomial of degree
a) 2
b) 0
c) 1
d) √2
Ans (b)
Que 14
(X)^51+51 is divided by x+1 ,the remainder is
a) 0
b) 1
c) 49
d) 50
Ans (d)
Que 15
The value of k is if (x+1) is a factor of (2x^2+kx )
a) (-3)
b) 4
c) 2
d) (-2)
Ans (c)
The coordinates of the origin
Number of lines passing through a point
( 3, 4)
a) one
b) two
c) three
d) infinite
Ans (d)
Que 2
Any point on the x-axis is of the form
a) (x,x)
b) (x,y)
c). ( 0,x)
d). ( x,0)
Ans ( d )
Que 3
Any point on the y axis is of form
a) (y,y)
b) (x,y)
c) ( 0,y)
d ) (y,0)
Ans (c)
Que 4
Linear equation in two variables how many solutions it has
a) one
b) two
c) infinite
d) not possible
Ans ( c )
Que 5
Which of the following is a solution of the equation 4x+3y=16
a) (2,3)
b) (1,4)
c) ( 3,2)
d). (4,1)
Ans (b)
Que 6
Which of the following lines passes through
(1,2)
a) x+y=3
b) x-y=0
c) x+2y = 0
d) 2x+y= 0
Ans. (a)
Que 7
The equation x= 4 represent the line
a) parallel to x axis
b) parallel to y axis
c) passes through origin
d) perpendicular to y axis
Ans (b)
Que 8
If (2,0) is solution of linear equation 2x+3y=k then the value of k is
a) 4
b) 6
c) 5
d) 2
Ans (a)
Que 9
The graph of y =mx is a straight line
a) parallel to x axis
b) parallel to y axis
c) passing through origin
d) coincides with x axis
Ans ( c)
Que 10
The point of the form (a,a) always lies on
a) x axis
b) y axis
c) on the line y=m x
d) on line x+y=0
Ans ( c )
Fri Dec 23, 2022
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