Question

1,2,3 nevoie mare de rezolvare completă

Answer 1

Răspuns:

Explicație pas cu pas:

1c) f+g=X²-9X³+X⁴+8+X-X²-X⁴=8+X-9X³.

     g+h=8+X-X²-X⁴+4X-X³+6X⁴=8+5X-X²-X³+5X⁴

     f+g+h=8+X-9X³+4X-X³+6X⁴=8+5X-10X³+6X⁴.

2.   Opusul polinomului f este -f.

a) -f=-(-2+5X-(3/5)X²+X³)=2-5X+(3/5)X²-X³.

b) -f = -11+X²+X³-4X⁵.

c) -f = -11+X²+X³-4X⁵.

d) - f = -9+3X²-13X³+√5X⁴

3.

a) (-5+7X²-13X³)+(-3+4X-X³+5X⁴)-(8-3X-4X²+X⁵)= -5+7X²-13X³-3+4X-X³+5X⁴-8+3X+4X²-X⁵=-16+7X+11X²-14X³+5X⁴-X⁵.

b) (2X-X²+4X³)-(-5+11X-6X²)+(X²-3X⁴)-(4X-X²+6X⁵)= 2X-X²+4X³+5-11X+6X²+X²-3X⁴-4X+X²-6X⁵=5-13X+7X²+4X³-3X⁴-6X⁵.

c) (-6+2X-X²)-(4X-X²+X³)+(7+X²-5X⁴)=-6+2X-X²-4X+X²-X³+7+X²-5X⁴=

1-2X+X²-X³-5X⁴.