Cho A là ma trận vuông cấp 2 và detA=11, Khi đó det(3A)=

How to choose the sign of the radical in the denominator of the formula for the distance from a point to a line.

Which statement about the relative areas of δabc and δxyz is true? the area of δabc > the area of δxyz the area of δabc < the area of δxyz the area of δabc = the area of δxyz more information is needed to compare.

Write an algebraic expression to match each statement a. four less than 8 times a number b. twice the difference of a number and six c. nine from a number squared