以下不能正确计算代数式1/3sin21/2值的C语言表达式是【】-X题卡

1/3*sin(1/2)*sin(1/2) sin(0.5)*sin(0.5)/3 pow(sin(0.5)，2)/3 1/3.0*pow(sin(1.0/2)，2)

1/3*sin(1/2)*sin(1/2) sin(0.5)*sin(0.5)/3 pow(sin(0.5)，2)/3 1/3.0*pow(sin(1.0.2)，2)

1/3*sin(1/2)*sin(1/2) sin(0.5)*sin(0.5)/3 pow(sin(0.5),2)/3 1/3.0*pow(sin(1.0/2),2)

1/3*sin(1/2)*sin(1/2) sin(0.5)*sin(0.5)/3 pow(sin(0.5),2)/3 1/3.0*pow(sin(1.0/2),2)

1/3*sin(1/2)*sin(1/2) sin(0.5)*sin(0.5)/3 pow(sin(0.5),2)/3 1/3.0*pow(sin(1.0/2),2)

1/3*sin(1/2)*sin(1/2) sin(0.5)*sin(0.5)/3 pow(sin(0.5)，2)/3 1/3.0*pow(sin(1.0/2)，2)

1/3 * sin(1/2) * sin(1/2) SlH(0.5) * sin(0.5)/3 pow ( sin(0.5)，2)/3 1/3.0*pow(sin(1.0/2)，2)

2*a*b/c/d a*b/c/d*2 a/c/d*b*2 2*a*b/c*d

1/3,sin(1/2)*sin(1/2) sin(0.5)*sin(0.5)/3 pow(sin(0.5),2)/3 1/3.0*pow(sin(1.0/2)，2)

1/3*sin(1/2)*sin(1/2) sin(0.5)*sin(0.5)/3 pow(sin(0.5)，2)/3 1/3.0*pow(sin(1.0/2)，2)

2*a*b/c/d a*b/c/d*2 a/c/d*b*2 2*a*b/c*d

4*a*b/c/e a*b/c/e*4 a/c/e*b*4 4*a*b/c*e

1/3 * sin(1/2) * sin(1/2) SlH(0.5) * sin(0.5)/3 pow ( sin(0.5)，2)/3 1/3.0*pow(sin(1.0/2)，2)

4 * c * d/a/b c * d/a/b* 4 c/a/b * d* 4 4* c* d/a, b

1/3*sin(1/2)*sin(1/2) sin(0.5)*sin(0.5)/3 pow(sin(0.5),2)/3 1/3.0*pow(sin(1.0/2),2)

1/3*sin(1/2)*sin(1/2) sin(0.5)*sin(0.5)/3 pow(sin(0.5),2)/3 1/3.0*pow(sin(1.0/2),2)

1/3*sin(1/2)*sin(1/2) sin(0.5)*sin(0.5)/3 pow(sin(0.5)，2)/3 1/3.0*pow(sin(1.0/2)，2)

以下不能正确计算代数式1/3sin2(1/2)值的C语言表达式是【】。