cos (45-A)-cos(45+A)
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7
cos ( 45 - A ) - Cos (45 + A ) = 0
45 - A - 45 - A =0
- 2A = 0
A = 0
•°• cos A = 90°
plz mark it as a brainlist ans.
45 - A - 45 - A =0
- 2A = 0
A = 0
•°• cos A = 90°
plz mark it as a brainlist ans.
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Answered by
8
Answer:
Step by step ⤵⤵⤵
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Cos ( 45-A ) - cos ( 45+ A ) =0
45 - A - 45 -A = 0
-2A =0
A= 0
: Cos A = 90°..........
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Hope it helps u ❤❤❤
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