Question

A B = (-1 + 7-k) x (21-gtk
k + 1 - 2 + 1 -
--1-8
云-
Å
2. it
A
A
21 tk
A
A
7
7 - jt
a
2 x B 2 C21 + 2 x (1 - 1 tk​

Answer 1

Answer:

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