What do you mean write COS22 in terms of sin
Find the distance between each
between points (x1,y1) and (x2,y2)
D=

find and verify that
BC=CD=DE=EB
so
BC=

=5√2
CD=

=5√2
DE=

=5√2
EB=

=5√2
true
Answer:
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I think ??????
Step-by-step explanation: