oblicz pochodną:
(-4x^3 +\sqrt{x} - lnx) * cos x
[ (-4x^3 +\sqrt{x} - lnx) * cos x ]` =
(-4x^3 + √x - lnx)` * cos x + (-4x^3 + √x - lnx) * ( cos x)` =
(-12x² + 1/(2√x) - 1/x ) * cosx + (-4x³ + √x - lnx ) * (-sinx) =
(-12x² + √x/(2x) - 1/x ) * cosx - (-4x³ + √x - lnx ) * sinx =
(-12x² + √x/(2x) - 1/x ) * cosx + (4x³ - √x + lnx ) * sinx
rozwiązanie w załaczniku
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[ (-4x^3 +\sqrt{x} - lnx) * cos x ]` =
(-4x^3 + √x - lnx)` * cos x + (-4x^3 + √x - lnx) * ( cos x)` =
(-12x² + 1/(2√x) - 1/x ) * cosx + (-4x³ + √x - lnx ) * (-sinx) =
(-12x² + √x/(2x) - 1/x ) * cosx - (-4x³ + √x - lnx ) * sinx =
(-12x² + √x/(2x) - 1/x ) * cosx + (4x³ - √x + lnx ) * sinx
rozwiązanie w załaczniku