Math Problem Statement

解这三道题

Solution

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Math Problem Analysis

Mathematical Concepts

Trigonometry
Monotonic Functions
Logarithms

Formulas

sin(α + π/6) = √3/2 + cos(α)
cos(2α - π/3)
f'(x) = x^2 + 2a x
15 log_{1.5} t^2 * t = 6 * 10 log_{1.5}^2 3

Theorems

Trigonometric Addition Formulas
Conditions for Monotonicity
Logarithmic Properties

Suitable Grade Level

Grades 10-12