Answer :
Answer:
Explanation:
cos (90 ± 0) = ?
To solve this, we need to consider the cosine function's properties:
cos (90 + 0) = cos 90 degrees
cos (90 - 0) = cos 90 degrees
The cosine of 90 degrees is 0.
Therefore,
cos (90 ± 0) = 0
Answer:
90
Explanation:because zoer does not contains a value