Com base nessas informações e nos vetores representados, julgue as afirmações a seguir concernentes a sua definição e operações. I. As coordenad...

Com base nessas informações e nos vetores representados, julgue as afirmações a seguir concernentes a sua definição e operações. I. As coordenadas dos vetores begin mathsize 12px style u with rightwards arrow on top end style e begin mathsize 12px style v with rightwards arrow on top end style são iguais, sendo begin mathsize 12px style stack A B with rightwards arrow on top equals stack C D with rightwards arrow on top equals left parenthesis 3 comma space 3 right parenthesis end style. II. Os vetores begin mathsize 12px style u with rightwards arrow on top end style, size 12px v with size 12px rightwards arrow on top e size 12px w with size 12px rightwards arrow on top possuem módulo iguais, sendo begin mathsize 12px style open vertical bar u with rightwards arrow on top close vertical bar equals open vertical bar v with rightwards arrow on top close vertical bar equals open vertical bar w with rightwards arrow on top close vertical bar equals square root of 18 end style. III. Se for efetuada a soma entre vetores begin mathsize 12px style v with rightwards arrow on top end style e begin mathsize 12px style w with rightwards arrow on top end style, ter-se-á begin mathsize 12px style v with rightwards arrow on top plus w with rightwards arrow on top equals 0 end style.