Math, asked by annamariyamalayil, 2 months ago

but all the questions should be answered (fully step by step and correctly )
THERE IS A BONUS THE ANSWERS WILL BE PROVIDED BUT YOULL HAVE TO WRITE IT DOWN
ALL THE BEST
prove that 3+2√5 is irrational
prove that √3 is irrational
find the value of m in 7(25-m) - 2m =2(2m-25)
expand (10+y)2
express 8.0025 in the form p/q
simplify 3√2 × 4√2 ×12√32

Answers

Answered by Anonymous
1

Answer:

Let us assume that 3 + 2√5 is a rational number.

So, it can be written in the form a/b

3 + 2√5 = a/b

Here a and b are coprime numbers and b ≠ 0

Solving 3 + 2√5 = a/b we get,

=>2√5 = a/b – 3

=>2√5 = (a-3b)/b

=>√5 = (a-3b)/2b

This shows (a-3b)/2b is a rational number. But we know that √5 is an irrational number.

So, it contradicts our assumption. Our assumption of 3 + 2√5 is a rational number is incorrect.

3 + 2√5 is an irrational number

Answered by annamariya9961
1

hope this helped

tnx for the points

these are the answers as said

anna challenge completed

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