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13-08-2019
Mathematics

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Use ΔABC to find the value of cos B

A) 12/13
B) 12/5
C) 5/13
D) 5/12

Use ΔABC to find the value of cos B A 1213 B 125 C 513 D 512 class=

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sqdancefan sqdancefan

13-08-2019

Answer:

C) 5/13

Step-by-step explanation:

The mnemonic SOH CAH TOA reminds you that the cosine ratio is ...

Cos = Adjacent/Hypotenuse

For the given problem, this means ...

cos(B) = BC/BA = 15/39

cos(B) = 5/13

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