题目 Problem Solve the equation 7coshx+3sinhx=2ex+77\cosh x+3\sinh x=2e^x+77coshx+3sinhx=2ex+7 Give your answers as simplified natural logarithms. (5) 题目中文翻译 求解方程 7coshx+3sinhx=2ex+77\cosh x+3\sinh x=2e^x+77coshx+3sinhx=2ex+7 把答案写成化简后的自然对数形式。 解答
