Question

(6 + 5 √3) – (4 – 3 √3) is
(a) a rational number

(b) an irrational number

(c) a natural number

(d) an integer​

Answer 1

Answer:

b) irrational number

solve that

it's very easy

Answer 2

Answer:

(b) an irrational number

Step-by-step explanation:

(6+5√3)-(4-3√3) = 6 + 5√3 - 4 +3√3

= 2 +8√3

= 2(1 +4√3)

we know, 4√3 is an irrational number(because √3 is a rational number)

and irrational number added to a rational number(i.e. 1) is also irrational and irrational number (i.e. 1+4√3) multiplied with a rational number is also irrational.

so answers is an irrational number

Please tell from which book have you taken this question from ???

note: it's very easy mental question no need to solve like I did, I did it for your explanation. just do it like mental maths