> 数学 >
设曲线f(x)D [0.1]上可导,且y=f(sin2x)+f(cos2x)求dy/dx
人气:375 ℃ 时间:2019-08-20 10:34:08
解答
复合函数求导公式:d(u(v)) / dx = u'(v)*v'dy/dx = f'(sin2x)*(sin2x)'+f'(cos2x)*(cos2x)'= f'(sin2x)*cos2x*(2x)'+f'(cos2x)*(-sin2x)*(2x)'= f'(sin2x)*cos2x*2+f'(cos2x)*(-sin2x)*2= 2f'(sin2x)*cos2x - 2f'(c...
推荐
猜你喜欢
© 2024 79432.Com All Rights Reserved.
电脑版|手机版