No,

is not a subspace of

. A simple counter-example to the contrary: let

with

. However, scaling by -1 gives the vector

and

.
Answer:
∠BDC=50°
Step-by-step explanation:
∠BDC=∠A[angles at the same segment)
∠A= 180-(65+65)=180-130= 50°
so, ∠BDC=50°
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Answer:
8
Step-by-step explanation:
c^2 is 9, 2d is 4
9-4+3=8
Answer:
m1=43
Step-by-step explanation:
78-35=43