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timurjin [86]
2 years ago
13

12-5[2(8+5)-15]+2(7-10)³show work!​

Mathematics
1 answer:
san4es73 [151]2 years ago
3 0

Answer: -97

Step-by-step explanation:

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<em>9/-1</em>

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3 years ago
Helpppppppppppppppppppppppppppppp
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Answer:

first option: Harulo is correct because the angle is coterminal with 3π / 4 and the reference angle is π / 4.

Explanation:

1) 19 π/4 = 4π + 3 π/4, which is 4 complete turns and 3/4 of turn.

2) 3 π/4 is in the third quadrant, so the reference angle is π - 3 π/4 = π/4

3) sin (π/4) = sin (3π/4) = (√2) / 2

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3 0
3 years ago
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