Question

how to find square root of 18i by square root method​

Answer 1

Answer:

324 bro that is your answer

Answer 2

Step-by-step explanation:

*･↝WE KNOW THAT THE LARGEST FACTOR OF 18 IS 9

HENCE, 18 = √9×√2 = √3×√3×√2 = 3×√2 = 3√2

*･↝From this we can say that, 18 is not perfect square of any number.

HENCE, THE SQUARE ROOT will be in point.

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"""""""mORE tO kNOW""""""

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*･↝For calculating the square root of 18 via the approximation method first we need to find two perfect squares between which 18 lies.

*･↝We know that 16 and 25 are the two perfect squares between which 18 lies. So, the square root of 18 will be greater than 4 but less than 5.

Therefore, the whole number part will be 4.

Now for the decimal part, we will use the formula:

*･↝Given number- Lower perfect square / Bigger perfect square-Lower perfect square

= (18-16)/(25-16)

= 2/9

= 0.22

So, the approx. the square root of 18 will be 4.22

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