Question

Find the product of 1 +3√2 and 1-3√2.
Is this product rational irrational ?
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Answer 1

Answer:

Here is the answer =>

Step-by-step explanation:

(1+3√2)*(1-3√2)

So let 1 be ‘a’ and 3√2 be ‘b’.

Now (a+b)(a-b) => a^2-b^2

SUBSTITITING THE VALUES =>

(1+3√2)(1-3√2)

=>(1)^2-(3√2)^2

=>1-9(2)

=>1-18

=>-17.

Yes the product is a rational number => -17.

So -17 is the product of (1+3√2)(1-3√2) which is the required answer.

HOPE IT HELPS.

Answer 2

Answer:

Step-by-step explanation:

tep-by-step explanation:

(1+3√2)*(1-3√2)

So let 1 be ‘a’ and 3√2 be ‘b’.

Now (a+b)(a-b) => a^2-b^2

SUBSTITITING THE VALUES =>

(1+3√2)(1-3√2)

=>(1)^2-(3√2)^2

=>1-9(2)

=>1-18

=>-17.