priscillanunez priscillanunez

24-03-2021
Mathematics

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mathematics geometry question. triangle abc

mathematics geometry question triangle abc class=

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ezioassasin55 ezioassasin55

24-03-2021

Answer:

This will be s - r.

Step-by-step explanation:

Here,

SinB = r

CosB = s

SinB = AC/BC

Also,

CosC = AC/ BC

So, we can say SinB = CosC = r

Again,

CosB = AB/ BC

Also,

SinC = AB/ BC

So,

CosB= SinC = s

So,

SinC - CosC = s - r

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