设A为2阶矩阵,P(阿尔法,A阿尔法) ,其中阿尔法是非零向量且不是A的特征向量
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设矩阵,则()
________theconcerthadbegundidwerealizewhatasplendidshowitwasgoingtobe.
Ishallneverforget________(meet)thelatePremierZhouduringhisinspectionofourfactory.
设A,B=,则A与B=()
Ababymightshowfearofanunfamiliaradult,_______heislikelytosmileandreachouttoanotherinfant.