Prove that 3+2 root 5 is irrational.
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manishjain82:
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Answer:let us assume 3+2root 5 as rational
So a and b are coming prime no where b is not equal to zero
Such that 2root5=3a by b
Square both sides
3a=c a-3 =2root 5
Therefore a and b r divisible by 3
Our assumption is wrong so 3+2root 5 is irrational
Step-by-step explanation:
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