f (x) = cos x * (cos x - 1)

f (x) = tg x (cos x+2)

f (x) = sin x (ctg x - 1)

f (x) = (4x-1) * sinx

1) f (x) = cos x * (cos x - 1) 4) f (x) = (4x-1) * sinx

f (x) = - sinx * sin x f (x) = 4cosx

f (x) = - sin^2x (в смысле в квадрате) во второй и третей строчках где f (x)

ставь над f сверху запятую (штрих)

2) f (x) = tg x (cos x+2)

f (x) = 1/sin^2x * sinx

f (x) = 1/sinx

3) f (x) = sin x (ctg x - 1)

f (x) = cos x * - 1/cos^2 x

f (x) = 1/cosx