Oi Kei

Example of discontinuous function?

isomorphism and normal subgroup?

Isomorphism?

Show that for n > 2, the dihedral group Dn is not abelian.?

Find a group G that contains elements a and b such that a^2 = e, b^2 = e, but the order of the element ab is infinite. Can G be abelian?

Suppose q is a rational number such that...?

probability problem?

Derive the joint pdf...?

Function of continuous random variable?

cryptography FACTORING?

The integral of the limit is not the limit of the integrals.?

Group theory?

Group theory isomorphism.?

product of permutation?

Let G be a group?

Abelian group?

Equivalence relation?

Symmetries of a circular disc?

Find a graph with five vertices and with exactly 22 cycles?

Graph Theory?

Graph theory?

狗屙爛便便的問題

Partial derivative...?

The temperature at a point (x, y, z) is given by?

Inverse Laplace Transformation?

Maths problem?

Determine the dimension of ker(T)?

Method of Undetermined Coefficients?

Repairing disk error

Find a differential equation?

Find a differential equation?

Are the functions linearly independent?

Linear Algebra

Linear Algebra. Help!!?

Differential equation?

initial value problem?

Which of the following sequences converge?

Which of the following sequences converge?

Newton's Law of Cooling?

Solving Differential Equations?

Solve the differential equation dy/dx=x/(36y).?

Find a solution to dy/dx=xy+7x+2y+14?

Find a solution to dy/dx=xy+7x+2y+14.?

Elementary linear algebra?

Complex 3x3 matrix....?

Elementary Linear Algebra Linearly independent?

Elementary Algebra!!!?

Paypal question:Where my money goes?

Grestest Common Divisor {GCD}

MATH INDUCTION