Math Problem Statement
The function sin cos 4 4 x x + is increasing in the interval
Solution
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Math Problem Analysis
Mathematical Concepts
Calculus
Trigonometric Functions
Derivatives
Increasing Functions
Formulas
f(x) = sin(x) + cos(x) + 4x
f'(x) = cos(x) - sin(x) + 4
Theorems
First Derivative Test
Suitable Grade Level
Grades 11-12 or Early College
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