Q1) From the choices given below mark the co-prime numbers
a) 2,3 (b) 2,4 (c) 2,5 (d) 2,107
Q2) Given a rational number -5/9. This rational number can also be known as a) A natural number (b) a rational number
(c) a whole number (d) a real number
Q3) The square root of which number is rational
a) 7 (b) 1.96 (c) 0.04 (d) 13
Q4) 2 - √7 is
a) A rational number (b) an irrational number
(c) a real number (d) a natural number
Q5) To rationalize the denominator of the expression 1 , we multiply and divide by √7 - √6 a) √7 + √6 (b) √6 (c) √7 × √6 (d) √7
Q6) (125)-1/3 can be written as
a) 5 (b) -5 (c) 1/5 (d) none of these
Q7) Every point on the number line
a) can be associated with a rational number
b) can be associated with an irrational number
c) can be associated with a natural number
d) can be associated with a real number
Q8) If z2 = 0.04, then z represents a ____________ number.
Q9) The number of irrational numbers between 15 and 18 is infinite. True or False
Q10) Multiply 5√2 by 17
Q11) Give an example each of two irrational numbers, whose Sum, Difference, Product and Quotient is rational and irrational number.
Q12) Find two rational and irrational numbers between 0.5 and 0.55.
Q13) Represent -12/5 on the number line
Q14) Express 0.047 in the form p/q where p and q are integers and q≠0.
Q1) Examine whether the following numbers are rational or irrational: i) (2-√3)2 ii) (√2+√3)2 iii) √3-1 √3+1 Q2) Express each of the following as...
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