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phạm vi x2+x+1x
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Solution
f(x)≤−1orf(x)≥3
+1
Interval Notation
(−∞,−1]∪[3,∞)
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Solution steps
Solve by:
One step at a time
y=sin(3x+4y)
Coi y như y(x)
Phép lấy vi phân tìm đạo hàmdydx của y=sin(3x+4y):3cos(3x+4y)1−4cos(3x+4y)
dydx=3cos(3x+4y)1−4cos(3x+4y)
Phép lấy vi phân tìm đạo hàmd2ydx2 của dydx=3cos(3x+4y)1−4cos(3x+4y):3(−3sin(3x+4y)−4sin(3x+4y)dydx)(1−4cos(3x+4y))2