prove that root 3 is irrational
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Answered by
0
Answer:
I can't prove but right answer is no
Step-by-step explanation:
please mark me to brainlist answer
Answered by
0
Answer:
lets consider ✓3 as rational number,
so it can be written as ✓3=a/b
b✓3=a
on squaring both sides
we get,
( b✓3)²= a²
3b² = a² .......(1)
which shows that a is divisible by 3 and vice versa
so now lets take a= 3m for any integer
putting the value of a in eq(1)
we have
3b²= (3m)²
3b²= 9m²
b²= 3m
which shows that b is also divisible by 3
we now know that a and b has atleast one common factor which is 3 in this case but we can't say that they are co prime,thus, by law of contradiction our assumption that ✓3 is rational is wrong
in conclusion ✓3 is irrational
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