试题 试卷
题型:单选题 题类:常考题 难易度:普通
(1)sinA=0.7,sinB=0.01;
(2)cosA=0.15,cosB=0.8;
(3)tanA=2.4,tanB=0.5.
(1)cosα= , tanβ=;
(2)sinα=0.456 7,cosβ=0.567 8.
试题篮