# user12345121212

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bio website location Los Angeles, Ca. age member for 2 years, 5 months seen Dec 16 '12 at 2:30 profile views 14

 4 Prove that: $\sin(x) \cos(x) \geq x-x^3$ 2 $f(x)=\max(2x+1,3-4x)$, where $x \in \mathbb{R}$. what is the minimum possible value of $f(x)$. 2 Significance of Hessian Matrix 2 Resources for kids education 0 How do I know if a simple pole exists (and how do I find it) for $f(z)$ without expanding the Laurent series first?

# 151 Reputation

 +20 $f(x)=\max(2x+1,3-4x)$, where $x \in \mathbb{R}$. what is the minimum possible value of $f(x)$. +56 Prove that: $\sin(x) \cos(x) \geq x-x^3$ +2 Prove that: $\sin(x) \cos(x) \geq x-x^3$ +2 Solving the complex equation $\sin(z) = \cos(z)$

# 3 Questions

 4 Prove that a set defined by concave functions on $R^n$ is convex 0 “Proof” of an Algebraic property of OLS Estimators 0 A question about cosets of the subgroup of rotations in $D_n$

# 15 Tags

 4 inequality 2 functions 4 trigonometry 2 derivatives 2 reference-request 0 economics 2 multivariable-calculus 0 abstract-algebra 2 education 0 complex-analysis

# 1 Account

 Mathematics 151 rep 7