Cho toán tử tuyến tính f: R3 - R3, f (x, y,z) = (2x; -x+y; 11y-z) a) Chứng minh f là một ánh xạ tuyến tính

b) Cho cơ sở B = ( u1(3;2;1), u2(-2;1;2), u3(1;2;-2) ). Tìm ma trận ánh xạ tuyến tính của (f)B

21

jk it's 20

step-by-step explanation:

so the possibilities of the measurement of the side of the triangle are either it is longest side or not the longest side

when it is the longest side

s < 25 + 35s < 60

if it is not the longest side

35 < 25 + s10 < sso 10 < s < 60so the perimeter70 < p < 130

hello,

as   long as they add up to 180 its correct.