Jasten
19.07.2019 •
Mathematics
If the sin 30° = 1 over 2, then the cos 60° = a 0, because the angles are complementary 1 over 2 b because the angles are complementary square root 3 over 2 c because the angles are complementary 1 d because the angles are complementary
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Ответ:
1/2
Because sin a = cos( 90-a)
so, cos(90-30) = sin 30 = 1/2
Ответ:
Ответ:
b if for most of the graph
d if y intercept
step-by-step explanation: