英语翻译

问题描述:

英语翻译
1.which of the following is equivalant to the equation x^2+5x+y^2-1=0 in polar form?
2.if A is a 2*3matrix ,and B is 3*4matrix,then the product of A times 3B is a matrix of which of the flolling dimensions?

1.下面的(数字)哪一个在极坐标形式中满足等式x^2+5x+y^2-1?
2.如果A是一个2*3的矩阵,B是一个3*4的矩阵,那么A乘以3B得到的矩阵的维度是下面的哪一个?第一题答案是r^2+5rcosθ-1=0第二题答案是3*3求详细过程?