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melisa1 [442]
3 years ago
6

What are partial products for 34×28

Mathematics
1 answer:
dsp733 years ago
3 0
42 x 28 = (40 + 2) x (20 + 8) = 40 x 20 + 40 x 8 + 2 x 20 + 2 x 8 = 800 + 320 + 40 + 16
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Answer:

n = π/6, π/4, 3π/4, 5π/6

Step-by-step explanation:

sin(3n) − sin n = cos(2n)

Use double and triple angle formulas:

(3 sin n − 4 sin³ n) − sin n = 1 − 2 sin² n

2 sin n − 4 sin³ n = 1 − 2 sin² n

4 sin³ n − 2 sin² n − 2 sin n + 1 = 0

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2 sin n − 1 = 0

2 sin n = 1

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Aloiza [94]

Answer:

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