socratic scanmath logo
  • calculator-type-img 代数
  • calculator-type-img 微积分
  • calculator-type-img 三角学
  • calculator-type-img 矩阵
A = [ 1 - 1001211 - 2 ] 21 - 111429 - 11 - 1832 - 6 - 2631 - 19
问题
Verification required
Please type the verification code shown
captcha-img