SmokeyRN
01.08.2019 •
Mathematics
Which equation is the inverse of y = 9x2 – 4? mc008-1.jpg mc008-2.jpg mc008-3.jpg mc008-4.jpg
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Ответ:
Explanation:
1) To find the inverse of the function y = 9x^2 - 4, exhange the variables x and y, and then solve for the new y.
2) Exchange of the variables: y = 9x^2 - 4 → x = 9y^2 - 4
3) Solve for y:
9y^2 = x + 4
y^2 = [x + 4] / 9
y = +/- [ √ (x + 4) ] / 3
Ответ:
No
Step-by-step explanation:
cosx = siny only if x = y = 45°
Otherwise
cosx° = sin(90 - x)°