# akinn

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 3 A problem on matrices : Powers of a matrix 2 How do I see that $x^5+x-1=(x^2-x+1)(x^3+x^2-1)$ 2 Find $p$ if $(x + 3)$ is a factor of $x^3 - x^2 + px + 15$. 2 How to graph the equation: $y=\frac {x-2}{x+1}$? 1 Flipping a vector across the y-axis

# 323 Reputation

 +5 Computing $\iiint_\mathbb{R^3} e^{-x^2-y^2-z^2}dxdydz$ using substitution +5 With which separation axiom is the quotient space well-behaved? +5 Finding out whether normal points outwards or inwards +2 Give an example of a function from $X$ to $Y$

# 7 Questions

 2 Computing $\iiint_\mathbb{R^3} e^{-x^2-y^2-z^2}dxdydz$ using substitution 2 Is this proof (using Rolle's Theorem) correct? 1 With which separation axiom is the quotient space well-behaved? 1 Finding out whether normal points outwards or inwards 1 What does $X^Y$ mean?

# 25 Tags

 6 polynomials × 3 1 summation 4 matrices × 2 0 general-topology × 3 3 linear-algebra × 3 0 multivariable-calculus × 2 2 algebra-precalculus 0 integration × 2 2 graphing-functions 0 abstract-algebra

# 5 Accounts

 Mathematics 323 rep 1220 Area 51 149 rep 2 Movies & TV 126 rep 5 Chemistry 116 rep 3 Physics 103 rep 2