In triangle $ABC$, $a$, $b$ and $c$ are the opposite sides of the interior angles $A$, \(B

Question

In triangle $ABC$, $a$, $b$ and $c$ are the opposite sides of the interior angles $A$, $B$ and $C$, respectively. Given that $b \sin A + a \cos B = 0$, show that $B = \frac{3}{4}\pi$.

Accepted Answer

$B=\frac{3\pi}{4}$ (shown).

Trigonometry - Trigonometric Equations

Trigonometry - Trigonometric Equations

Solution:

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