问题 填空题 若cotA=33,则锐角A=______度;若2sin(90°-β)=3,则锐角β=______度. 答案 (1)∵cotA=33,∴锐角A=60°;(2)∵2sin(90°-β)=3,∴sin(90°-β)=32,∴90°-β=60°,∴β=30°.