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lana [24]
4 years ago
13

Please answer this question​

Mathematics
1 answer:
alisha [4.7K]4 years ago
7 0

Answer:

36.

Step-by-step explanation:

sec^2 (π/9) = 1 / cos^2 (π/9) = 1.13247

sec^2 (2π/9) = 1 / cos^2 (2π/9) = 1.70409

sec^2 (4π/9) = 1 / cos^2 (4π/9) = 33.1634

Adding these gives us  36 to the nearest whole number

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