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初中三角函数计算题100道.doc

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<p>(1) sin260°+cos260 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;(2)-tan450 (3)cos45°-sin30° &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;(4)sin2300+cos2300 (5)tan45°-sin30°·cos60° &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (6) (7)2sin300-cos450 &nbsp; &nbsp;(6)sin600cos600 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (8)2sin30°+3cos60°-4tan45° &nbsp; &nbsp; &nbsp; (9)cos30°sin45°+sin30°cos45° &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (10) &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (11) cos30°+sin45° &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;(12)2sin300+3sin600-4tan450 &nbsp; &nbsp; &nbsp; (13)tan300sin450+tan600cos450 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;(14) (15); (16)=________________ (17) &nbsp; (19)sin230°+cos245°+sin60°·tan45°; &nbsp; &nbsp;(20)+ sin45° (21) (22) (24) (25) (26) (27) (28) (29) (30) (31) (32) (33) (34) (35) (36) (37) (38) (39) (40)sin45°+3tan30°+4cos30°&nbsp;&nbsp; (41)cos260°-tan45°+sin60°·tan60°. (42) (43) (44) (45) (46) (47) (48) (49) (50) (51) (52) (53) (54) (55) (56) (57) (58) (59) (60) (61) (62) (63) (64) (65) (66) (67) (68) (69) (70) (71) (72) (73) (74) (75) (76) (77) (78) (79) (80) (81) (82) (83) (84) (85) (86) (87) (88) (89) (90) (91) (92) (93) (94) (95) (96) (97) (98) (99) (100) 37 (76):1 (77):2</p>
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