已知αAB=203014’50’’’,SAB=300m,求得的△XAB和△YAB的符号为()A、+,+B、+,-C、-,-
已知αAB=203014’50’’’,SAB=300m,求得的△XAB和△YAB的符号为()
- A、+,+
- B、+,-
- C、-,-
相关考题:
坐标正算中,下列何项表达了横坐标增量?A. △XAB=DAB* cosaAB B. △YAB=DAB* sinaABC. △YAB=DAB* sinaBA D. △XAB=D* cosaBA
两点坐标增量为ΔxAB=+ 42. 567m和ΔyAB=-35. 427m,则方位角aAB和距离DAB分别为:A. -39°46'10",55. 381mB. 39°46'10",55. 381mC. 320°13'50",55. 381mD. 140°13'50",55. 381m
两点坐标增量为ΔxAB=+ 42. 567m和ΔyAB=-35. 427m,则方位角aAB和距离DAB分别为:A. -39°46'10",55. 381m B. 39°46'10",55. 381mC. 320°13'50",55. 381m D. 140°13'50",55. 381m
两点坐标增量为△xab=+42.567m和△yab=-35.427m,则方位角aab和距离Dab分别为()A、-39°46′10″,55.381mB、39°46′10″,55.381mC、320°13′50″,55.381mD、140°13′50″,55.381m
已知点A的坐标为(2179.978,1356.312),AB边的坐标增量为XAB=-107.865,YAB=86.568。则B点的坐标为()。A、(2072.113,1269.744)B、(2287.843,1442.880)C、(2287.843,1269.744)D、(2072.113,1442.880)
已知A=40;B=30;C=100;D=50,逻辑“与”运算符为and,“或”运算符为or,“非”运算符为not。计算表达式(AB)and(A=B)的值,结果为()。A、40B、200C、真D、假
已知αAB=312°00′54″,SAB=105.22,则△X,△Y分别为()A、70.43 ;78.18B、70.43 ;-78.18C、–70.43 ;-78.18D、–70.43 ;78.18
单选题已知A=40;B=30;C=100;D=50,逻辑“与”运算符为and,“或”运算符为or,“非”运算符为not。计算表达式(AB)and(A=B)的值,结果为()。A40B200C真D假
单选题两点坐标增量为△xab=+42.567m和△yab=-35.427m,则方位角aab和距离Dab分别为()A-39°46′10″,55.381mB39°46′10″,55.381mC320°13′50″,55.381mD140°13′50″,55.381m
单选题已知A、B两点的坐标增量为:△XAB=+100.00m,△YAB=-100.00m;则AB边的坐标方位角是()A45°B225°C315°