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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)

Answers

ansver
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)

ansver
Answer from: Quest
Is this from a
ansver
Answer from: Quest

answer: c i think

step-by-step explanation:

The owners of four companies competing for a contract are shown in the table below

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30.54
Which relationship in the triangle must be true?
sin(B) = sin(A)
sin(B) = co...