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Damm [24]
3 years ago
6

I really need help on this im bad at math anyway but i cant see graphs clearly first good answer will get brainliest Please help

Mathematics
2 answers:
emmainna [20.7K]3 years ago
7 0

\sin(b) =  \frac{3}{4} \\ b = inverse \: sine \: of \:  \frac{3}{4} = 48.6
Ksivusya [100]3 years ago
5 0

Answer:

Exact value,  \angle B=\sin^{-1}(\frac{3}{4})

Approximation,  \angle B\approx 48.6^\circ

Step-by-step explanation:

In ΔABC, ∠C=90°

We are given a right angle triangle.

Side AB is hypotenuse = 4

Side AC is one leg = 3

Using trigonometry identity:

\sin\angle B=\dfrac{Perpendicular}{Hypotenuse}

\sin\angle B=\dfrac{AC}{AB}

\sin \angle B=\dfrac{3}{4}

\angle B=\sin^{-1}(\frac{3}{4})

\angle B=48.59^\circ\approx 48.6^\circ

The exact value of \angle B=\sin^{-1}(\frac{3}{4})

The approximation of \angle B\approx 48.6^\circ

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