milkshakegrande101
06.03.2021 •
Mathematics
13. From the circular card sheet of radius 21 cm, a circle of radius 7cm and a
rectangle of length 5cm and breadth 3cm are removed. Find the area of the
remaining sheet
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Ответ:
cosecθ
Step-by-step explanation:
Please see attached picture for full solution.
cosecθ= 1/sinθ
cotθ= 1/tanθ= cosθ/sinθ