Question

найдите производную функции 30 баллов даю

Answer 1

y'=-1/sin^2x × 6x
y'=1/x ×21x^2=21x
y'=-sinx/6x

Answer 2

1) y'= (-1/sin²x) * 3x²+ ctgx *6x

2)y'=1/x * 7x³+ lnx * 21x²= 7x²+21x²lnx = 7x²(1+3lnx)

3)y'=(-sinx)*3x²-cosx* 6x / 9x⁴ = -3x( x sinx -2cosx) / 9x⁴ =

= -( x sinx -2cosx) / 3x³ = -xsinx+2cosx / 3x³