9th CBSE Maths Numbers,

  $3+\sqrt{5}$  is

• Rational number

• Integer

• irrational Number

• Natural Number

 $\sqrt{X}=25\ then\ value\ of\ X\ is\$  

• 5

• 125

• 625

• 1

 $$  If  $x-2$  is  a factor of  $x^{3^{ }}-2ax^2+ax-1\$  then the value of  $a$  is

•  $\frac{7}{6}$  

•  $-\frac{7}{6}$  

•  $\frac{6}{7}$  

•  $-\frac{6}{7}$  

 $$  If   $x+y+z=0$  then  $x^3+y^3+z^3$  is equal to

•  $3xyz$  

•  $-3xyz$  

•  $xy$  

•  $-2xy$  

 $$  The factors of   $6x^2+5x-6$  are

•  $\left(2x-3\right)\left(3x-2\right)$  

•  $\left(2x-3\right)\left(3x+2\right)$  

•  $\left(2x+3\right)\left(3x-2\right)$  

•  $\left(2x+3\right)\left(3x+2\right)$  

If the decimal representation of a number is non-terminating, non-repeating then the number is

• a natural number

• a whole number

• a rational number

• an irrational

The degree of the polynomial 7x³+5x²-2x+1

• 3

• 2

• 1

• 0

After rationalising the denominator of 

 $\frac{7}{3\sqrt{3}-2\sqrt{2}}$  , we get the denominator as

• 13

• 19 

• 5

• 35

Which property is this 2 + 0 = 2

• Additive Identity Property

• Multiplicative Identity Property

• Commutative Property

• Closure Property

Which property is 45 x 1 = 45

• Closure Property

• Multiplicative Identity

• Multiplicative Identity of Zero

• I dont know