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作业:求算式 0.5*(e^(3.3072)+e^(-3.3072))*sin(3.3072)-0.5*(e^(3.3072)-e^(-3.3072))*cos(3.3072) 的值.
题型:数学计算
解:
0.5*(e^(3.3072)+e^(-3.3072))*sin(3.3072)-0.5*(e^(3.3072)-e^(-3.3072))*cos(3.3072)
=0.5*(e^3.3072+e^(-3.3072))*sin(3.3072)-0.5*(e^(3.3072)-e^(-3.3072))*cos(3.3072)
=0.5*(e^3.3072+e^(-3.3072))*sin(3.3072)-0.5*(e^(3.3072)-e^(-3.3072))*cos(3.3072)
=0.5*27.345179*sin(3.3072)-0.5*(e^(3.3072)-e^(-3.3072))*cos(3.3072)
=0.5*27.345179*sin3.3072-0.5*(e^(3.3072)-e^(-3.3072))*cos(3.3072)
=0.5*27.345179*sin3.3072-0.5*(e^3.3072-e^(-3.3072))*cos(3.3072)
=0.5*27.345179*sin3.3072-0.5*(e^3.3072-e^(-3.3072))*cos(3.3072)
=0.5*27.345179*sin3.3072-0.5*27.271942*cos(3.3072)
=0.5*27.345179*sin3.3072-0.5*27.271942*cos3.3072
=0.5*27.345179*-0.164851-0.5*27.271942*cos3.3072
=0.5*27.345179*-0.164851-0.5*27.271942*-0.986318
=13.67259*(-0.164851)-0.5*27.271942*(-0.986318)
=(-2.25394)-0.5*27.271942*(-0.986318)
=-2.25394-13.635971*(-0.986318)
=-2.25394-(-13.449404)
=11.195464 答案:0.5*(e^(3.3072)+e^(-3.3072))*sin(3.3072)-0.5*(e^(3.3072)-e^(-3.3072))*cos(3.3072)=11.195464 注:弧度制你的问题在这里没有得到解决?请到 热门难题 里面看看吧!