30.54
Which relationship in the triangle must be true?
sin(B) = sin(A)
sin(B) = co...
Mathematics, 06.05.2020 00:45 kiingbr335yoqzaxs
30.54
Which relationship in the triangle must be true?
sin(B) = sin(A)
sin(B) = cos(90 -B)
cos(B) = sin(180 - B)
cos(B) = cos(A)
Answer from: ehgdhjahag
Choice 2) sin(B) = cos(90-B)
Explanation:
The rule is that
sin(A) = cos(B)
if and only if A+B = 90.
Solving for A gets A = 90-B
So we end up with
sin(90-B) = cos(B)
which is the same as
cos(B) = sin(90-B)
Answer from: Quest
Is this from a
Answer from: Quest
answer: c i think
step-by-step explanation:
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