Answer:
never true
Explanation:
If angles A and B are complementary, their measures add to 90º.
This means that if:
m∠B = 55º,
then:
m∠A = (90 - 55)º = 45º
Using this information, we can make the assertion that because:
55º ≠ 45º,
m∠A ≠ m∠B,
and thus:
sin(A) ≠ sin(B)
because 55º and 45º are NOT coterminal angles.
Therefore, the statement
sin(A) = sin(B)
is never true.