kelia57 kelia57

31-03-2021
Mathematics

contestada

What value of a makes sind = cos 20° a true statement?
A)
25°
B)
70°
C)
100°
D)
110°

What value of a makes sind cos 20 a true statement A 25 B 70 C 100 D 110 class=

Respuesta :

djsjjxks djsjjxks

31-03-2021

b)70 because sina=cos(90-a)

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