Question

please help

which one is irrational

Answer 1

@ambujverma

Answer 2

\[\sqrt{25}\]

Answer 3

thats A.

Answer 4

B. \[\sqrt{225}\]

Answer 5

both are rational

Answer 6

Irrational numbers are square roots
(unless it is a square root of a perfect square such as √16 )

also, e, and π

Answer 7

C. \[\sqrt{78}\]

Answer 8

D. \[\sqrt{59}\]

Answer 9

\(\large\color{black}{ \displaystyle 225=15\times 15 }\)
\(\large\color{black}{ \displaystyle 25=5\times 5 }\)

Answer 10

so square root of a perfect square will give you (in this case) an integer).

Answer 11

there is more than 1 answer.

Answer 12

yeeah

Answer 13

a,b are rational
as we cannot write c,d in p\q form so thes are irrational

Answer 14

adding:

\(\large\color{black}{ \displaystyle \left\{p,q\right\}\in{\bf N} }\)

Answer 15

in other words, p and q are integers.

(that is 1 way to define rational number, to which ambujverma was referring)

A rational number is a quotient of 2 integers p and q, such that: p/q