sondrascott7351
29.07.2019 •
Mathematics
How did early mathematicians define trigonometric functions?
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Ответ:
length of chords
Explanation:
In the study of the earth and astronomy, mathematicians developed trigonometric functions as lengths of chords in a circle, not as ratios. The mathematician Ptolemy calculated chord lengths by inscribing regular polygons in a circle. Remarkably, he was able to calculate these lengths to an accuracy of about five decimal places. Ptolemy's table of chords is equivalent to our table of sine values. In this lesson, you will begin to see the relationship between the trigonometric functions and the circle.
Ответ:
The answer is 42
Step-by-step explanation:
I might be doing this wrong, but if we multiply 40 by 30 to find the total area of the country (1,200 square miles), we can divide the total population (50,000) by each answer choice to find which answer is correct; 50,000/42 is equal to 1,190, the closest product to 1,200. I claim to have possibly done this wrong, but 42 was the correct answer I received on the quiz -- hope I helped!