https:/img.zuoyebang.cc/zyb_7951f03ce916a2297d2b38782b6a2474.jpg+(a)^2-|||-https:/img.zuoyebang.cc/zyb_7951f03ce916a2297d2b38782b6a2474.jpg+(a)^2-|||-=1+3(a)^2-|||-https:/img.zuoyebang.cc/zyb_7951f03ce916a2297d2b38782b6a2474.jpg+(a)^2 （ ）

某天早 https:/img.zuoyebang.cc/zyb_8cea8f9e1e44fee4a53b84b1b8d04a09.jpg.9 点至晚 https

燃料组成为https:/img.zuoyebang.cc/zyb_2cc414bcc79e95b612af1937a32d889a.jpg(a)^r=43%ht

https:/img.zuoyebang.cc/zyb_7799087af0a37bad4c44aafa78886ed8.jpg-4 试求习题 https:/i

https:/img.zuoyebang.cc/zyb_c0fbf0d3ab9a0b30a20e47b6f2b25ba5.jpg-a-|||-C.α^2 D.

-- ------- ---.-|||-https:/img.zuoyebang.cc/zyb_7e73d39b432994fc88687ca8629a236b

A https:/img.zuoyebang.cc/zyb_49faa650c826dcd3cc546a2c70cc7539.jpgleqslant kleqs

P,则 |A|= () 》-|||-A -2-|||-B -1-|||-()-|||-c 2-|||-D https:/img.zuoyebang.cc/zyb

设矩阵A= (3,-2) ,B= 2 4 https:/img.zuoyebang.cc/zyb_7142fe6d884b795b75323081826723e

θ^2 .https:/img.zuoyebang.cc/zyb_cc1d55810cc7d52776d9633cf4097f0a.jpg-20-|||-其中

https:/img.zuoyebang.cc/zyb_e8bd054ef3dd65e8f324cadbf8b2d8a0.jpg-beta , 且β已知 E.