Question

производная cos(-1.3x) .... cos в 4 степени x....tg5.6x+ctg(-2x) ... (cosx+1)/(cosx-1)... 1/sinx

Answer 1

1)1,3sin(-1,3x)
2)-4cos³xsinx
3)58/5cos²5,6x+2/sin²(-2x)
4)(cos²x-1)`=(-sin²x)`=-2sinxcosx=-sin2x
5)-cosx/sin²x