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Black_prince [1.1K]
3 years ago
10

Can you please help me ​

Mathematics
1 answer:
kkurt [141]3 years ago
8 0

Answer:

a) x=

10°

50°

130°

10°

50°

130°

170°

250°

290°

b) x=

90°

210°

330°

Step-by-step explanation:

2 sin (3x) = 1

a)  look at the graph, y=1 when x is near:

10°,  50°, 130°, etc

in the equation: 2 sin (3x) = 1  ⇒ sin (3x) = 0.5  ⇒ 3x = 30° (and others)  ⇒ x = 10° (and others).  So the values given in solution (10°,  50°, 130°, etc) are true

b) is evident

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