试题 试卷
题型:填空题 题类:常考题 难易度:普通
(1)sin59°;
(2)cos68°42′.
(1)sin23°5′+cos66°45′
(2)sin27.8°﹣tan15°8′.
(1)sinA=0.7,sinB=0.01;
(2)cosA=0.15,cosB=0.8;
(3)tanA=2.4,tanB=0.5.
试题篮