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Tju [1.3M]
4 years ago
15

Please help, picture attached! <3

Mathematics
1 answer:
11111nata11111 [884]4 years ago
4 0

Answer:

The answer to your question is Ф = 210°; sin 120 = -1/2

Step-by-step explanation:

Data

Ф = 7π/6

∠ = ?

sin Ф = ?

Process

1.- Convert radians to degrees using proportions and cross multiplication

                     π rad    ------------------ 180°

                   7π/6 rad  ----------------   x

                     x = (7π/6 x 180) / π rad

                     x = (7 x 180) / 6

                     x = 1260/6

                     x = 210°

2.- Find the sin of 210°

sin 210 = -1/2

 

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