tolong dibantoo yaa fliss

Panjang Vektor
a. |V| = √(x²+y²)= √(3)²+(-4)² = √25 = 5

b/ |V| = √(x²+y²+z²) = √(-2)² +(4)² +(6)² = √(4+16+36) = √56= 2√14

c. |a| = √(x²+y²+z²) = √(1²+2²+(-2)²) = √9 = 3