Answer:
a plane figure with four straight sides and four right angles, especially one with unequal adjacent sides, in contrast to a square.
Step-by-step explanation:
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Answer:
what I think this question has mistake
Let

. Then

, and differentiating both sides with respect to

gives


Now, when

, you get

You have

, so

and

. So
By changing the number into a decimal, and then moving the decimal twice to the right.