Answer:
A = 60°
Explanation:
Since cosA = 1/2, to find the value of A, we take the inverse cosine of both sides.
So, cosA = 1/2
So, taking inverse cosine of both sides, we have
cos⁻¹cosA = cos⁻¹(1/2)
So, A = cos⁻¹(1/2)
Using our calculator, taking cosine inverse of one-half, we find that, cos⁻¹(1/2) = 60°
Since cos⁻¹(1/2) = 60° and A = cos⁻¹(1/2)
This implies that A = 60°
So, we find that the value of A is 60°.
