antoniobeep0 antoniobeep0

18-02-2022
Mathematics

contestada

If sin 2A = cos 3A, then A is
=
A. 5
B. 15
C. 18
D. 36

Respuesta :

Medunno13 Medunno13

20-02-2022

Answer:

C

Step-by-step explanation:

It looks like this question is testing your knowledge of the fact that if 2 angles are complementary, then the sine of the first angle equals the measure of the second angle.

So this means 2A+3A=90 -> A=18

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