Answer
$sinA=\frac{a}{b}$
$cosC=\frac{a}{b}$
Work Step by Step
Refer to image
![](https://gradesaver.s3.amazonaws.com/uploads/solution/3a2b16c2-9134-4cc2-9095-79f46353f270/steps_image/small_1517438395.jpg?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAJVAXHCSURVZEX5QQ%2F20240908%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20240908T001446Z&X-Amz-Expires=900&X-Amz-SignedHeaders=host&X-Amz-Signature=f244cf4ec3c349b96c279eb3ffe29c8cb60bb4270df697e9112c4478ef03d692)
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