Answers

1. The sine and the cosine of the acute angle are the same for θ = π / 4. (Correct choice: 2)

   To what angles both the sine and the cosine have the same value?

   Acute angles are angles whose measures are greater than 0° and less than 90°. According to the statement, we must find at least a value such that sin θ = cos θ:

   sin θ = cos θ                     Given

   sin θ / cos θ = 1                 Compatibility with multiplication / Existence of multiplicative inverse / Modulative property

   tan θ = 1                            Definition of tangent

   θ = π / 4                            Inverse trigonometric function / Result

   In a nutshell, the sine and the cosine of the acute angle are the same for θ = π / 4. (Correct choice: 2)

   To learn more on trigonometric functions: https://brainly.com/question/14746686

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