Question

Find the value of : Cos 1125°
Ans : 1/ under root 2
Plz do it right now tomorrow is my exam

Answer 1

Solution :- cos ( 1125° ) = cos ( 360° × 3 + 45° ) = cos45°

•°• This is in first quadrant so the value of cos¢ will be positive.

So , cos45° = 1/√2 Answer

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Hope it's helpful

Answer 2

Answer:

refer to this attachment ✅✅