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Sagot :
Answer:
30.34 degree
Step-by-step explanation:
Apply sine formula
[tex]\frac{sin\left(A\right)}{a}=\frac{sin\left(B\right)}{b}[/tex]
[tex]\frac{\sin \left(45^{\circ \:}\right)}{7}=\frac{\sin \left(b\right)}{5}[/tex]
->simplify
[tex]\frac{\sin \left(b\right)}{5}=\frac{\frac{\sqrt{2}}{2}}{7}[/tex]
you will get
[tex]\sin \left(b\right)=\frac{5\sqrt{2}}{14}[/tex]
which
sin b is about 0.50507
[tex]sin^{-1}\left(0.50507\right)[/tex]
->arc sine in degree mode
the answer is 30.34
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