Respuesta :
check the picture below, that's just an example of complementary angles relations in a right-triangle.
the complementary angle of 34° is 90° - 34°, and the
sin(90° - 34°) = cos(34°).
so just plug that in your calculator, make sure it's in Degree mode.
the complementary angle of 34° is 90° - 34°, and the
sin(90° - 34°) = cos(34°).
so just plug that in your calculator, make sure it's in Degree mode.

Answer:
0.8290
Step-by-step explanation:
If the sum of two angle is 90 degrees then the angles are complimentary angle to each other.
If x be the complimentary angle of 34° then we have
x + 34° = 90°
x = 90° - 34°
x = 56°
Thus, sine of the complimentary angle of 34° is
sin 56°
= 0.8290