f(x)=x²-2x+cos x;
f'(x)=2x-2-sinx;
f(x)=3x⁴ - 7x²+2x-1;
f'(x)=12x³ - 14x+2;
f(x)=x³+3x-sinx;
f'(x)=3x²+3-cosx;
f(x)=2x⁵+4x³-3x+8;
f'(x)=10x⁴+12x²-3;
f(x)=x³(2x-5)=2x⁴-5x³;
f'(x)=8x³-15x²;
f(x)=x⁴(6x+1)=6x⁵+x⁴;
f'(x)=30x⁴+4x³;
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Answers & Comments
f(x)=x²-2x+cos x;
f'(x)=2x-2-sinx;
f(x)=3x⁴ - 7x²+2x-1;
f'(x)=12x³ - 14x+2;
f(x)=x³+3x-sinx;
f'(x)=3x²+3-cosx;
f(x)=2x⁵+4x³-3x+8;
f'(x)=10x⁴+12x²-3;
f(x)=x³(2x-5)=2x⁴-5x³;
f'(x)=8x³-15x²;
f(x)=x⁴(6x+1)=6x⁵+x⁴;
f'(x)=30x⁴+4x³;