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Please Help ASAP!! 20 points!!

Please Help ASAP!! 20 points!!-example-1
User Lcazarre
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1 Answer

1 vote

Answer:


\cos ^(-1)((6.3)/(9.8))


\sin^(-1) ((7.5)/(9.8))

Explanation:

Recall and use the mnemonics SOH to obtain;


\sin(\angle ABC) =(Opposite)/(Hypotenuse)

This implies that;


\sin(m \angle ABC) =(7.5)/(9.8)

Take the inverse sine of both sides to get;


m\angle ABC =\sin^(-1) ((7.5)/(9.8))

Also,


\cos (m\angle ABC)=(Adjacent)/(Hypotenuse)


\cos (m\angle ABC)=(6.3)/(9.8)


\Rightarrow m\angle ABC=\cos ^(-1)((6.3)/(9.8))

User Cross
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