1 answer:
Answer:
B
Step-by-step explanation:
Using the cosine ratio in the right triangle and the exact value
cos45° =
, then
cos45° =
=
=
( cross- multiply )
c = 3
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Step-by-step explanation:
Answer:
The answer (D)
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Answer:
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Step-by-step explanation:
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I hope this helps...
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Answer:
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