(1)sin260°+cos260 (2)oo45sin45cos-tan450 (3)cos45°-sin30° (4)sin2300+cos2300 (5)tan45°-sin30°·cos60° (6) 020230tan45cos (7)2sin300-cos450 (6)sin600cos600 (8)2sin30°+3cos60°-4tan45° (9)cos30°sin45°+sin30°cos45° (10)00045tan260tan160sin (11) 3 cos30°+2 sin45° (12)2sin300+3sin600-4tan450 (13)tan300sin450+tan600cos450 (14)00045tan260tan130sin (15)_______60cot45tan_______,60cos30sin0000; (16)30sin30cos30tan4145sin60cos22=________________ (17)000045tan30tan145tan30tan )60sin45(cos30sin60cos2330cos45sin000000 (19)sin230°+cos245°+2 sin60°·tan45°; (20)22cos 30cos 60tan 60tan 30 + sin45 (21) (22) (24) (25) (26) (27) (28) (2 9 ) 3 0 ) (3 1 ) (3 2 ) (3 3 ) (3 4 ) (3 5 ) (3 6 ) (3 7 ) (3 8 ) (3 9 ) (4 0 )sin45°+3tan30°+4cos30° (41)cos260°-tan45°+sin60°·tan60°. (4 2 ) (4 3 ) (4 4 ) (4 5 ) (4 6 ) (4 7 ) (4 8 ) (4 9 ) (5 0 ) (5 1 ) (5 2 ) (5 3 ) (5 4 ) (5 5 ) (5 6 ) (5 7 ) (5 8 ) (5 9 ) (6 0 ) (6 1 ) (6 2 ) (6 3 ) (6 4 ) (6 5 ) (6 6 ) (6 7 ) (6 8 ) (6 9 ) (7 0 ) (7 1 ) (7 2 ) (7 3 ) (7 4 ) (7 5 ) (7 6 ) (7 7 ) (7 8 ) (7 9 ) (8 0 ) (8 1 ) (8 2 ) (8 3 ) (8 4 ) (8 5 ) (8 6 ) (8 7 ) (8 8 ) (8 9 ) (9 0 ) (9 1 ) (9 2 ) (9 3 ) (9 4 ) (9 5 ) (9 6 ) (9 7 ) (9 8 ) (9 9 ) (1 0 0 ) 3 7 (7 6 ):1 (7 7 ):2