- #1

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This is what I did:

Draw a line "h" as the height of the triangle on the side "c".

[tex]\sin\alpha = h/b[/tex]. Multiplying by "b" gives [tex]b\sin\alpha = h[/tex]

[tex]\sin\beta = h/a[/tex]. Multiplying by "a" gives [tex]a\sin\beta = h[/tex]

From this we see that [tex]b\sin\alpha = a\sin\beta[/tex] and from this

[tex]\frac{a}{\sin\alpha}=\frac{b}{\sin\beta}[/tex].

Correct?

- Kamataata