(1)sinA=0.7,得A=44.4∘;
sinB=0.01得B=0.57∘;
(2)cosA=0.15,得A=81.4°;
cosB=0.8,得B=36.9°;
(3)由tanA=2.4,得A=67.4∘;
由tanB=0.5,得B=26.6°.
(1)sinA=0.7,得A=44.4∘;
sinB=0.01得B=0.57∘;
(2)cosA=0.15,得A=81.4°;
cosB=0.8,得B=36.9°;
(3)由tanA=2.4,得A=67.4∘;
由tanB=0.5,得B=26.6°.