Respuesta :
sin(α) = sin (90-Ф)
The right answer is b. In any right triangle, the sine of one acute angle is equal to the sine of its complementary angle.
The right answer is b. In any right triangle, the sine of one acute angle is equal to the sine of its complementary angle.
a. In any right triangle, the sine of one acute angle is equal to the cosine of the other acute angle.