Question

draw a ray diagram to get an image of object whose magnification is positive and less than one​

Answer 1

Answer:

Hi gise , there is no option to draw Ray line

Answer 2

Explanation:

The square root of 2, or the (1/2)th power of 2, written mathmatics as

$\sqrt{2} \: or \: \frac{21}{2}$

is the positive algebraic number that, when multiplied itself, equals the number 2. Technically , it is called the principal square root of 2, to distinguish from the negative number with the same property.

Geometrically the square root of 2 is the length of the diagonal across a square with sides of one unit of length; this follows the pythagorean theorem. It was probably the first number known to be irrational. [ citation needed].

As a good rational approximation for the square root of two, with a reasonably small denominator, the fraction 99/70 (= 1.4142857) is sometimes used.

The sequence A002193 in the OEIS consists of digits in the decimal expansion of the square root of 2, here trauncated to 65 decimal places:

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