Fl ifx is perpendicular to the vectors yi, y2 and y3 then x is also perpendicular to yı y and . [t to yi — у2 + уз- 2. [t f] if |x| 3 and |ly|= 4 and x is perpendicular to y then ||x +y||= 5. 3. [t fl let a be an invertiblen xn matrix, b be an n x n matrix and i be an n xn identity matrix then (aba1 i) = a(b i)a-1

i believe the correct answer is option 4.principalities were small territories that were run by russian rulers.

which statement correctly defines principalities in northern asia in the 1200s? principalities were small territories that were run by russian rulers.

hope i could ! : )

table 3 represents a direct variation function. : )

wow ok so the answer is 1k or just k

because of combining like terms xd