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一、选择题(1)sin600°的值是(D).A.12B.-12C.32D.-32(2)函数y=a|x|(a>1)的图象是(B).(3)曲线的极坐标方程ρ=4sinθ化成直角坐标方程为(B).A.x2+(y+2)2=4B.x2+(y-2)2=4C.(x...
First, multiple choice (1) sin600 ° value is (D). A. 12B. -12C. 32D. The image of the -32(2) function y=a|x|(a>1) is (B). (3) The polar coordinate equation of the curve ρ = 4 sin θ is converted into a rectangular coordinate equation (B). A. X2+(y+2)2=4B. X2+(y-2)2=4C. (x...