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insens350 [35]
3 years ago
6

Trigonometry

Mathematics
1 answer:
Sunny_sXe [5.5K]3 years ago
5 0

Answer:

cosx = sqrt(15)/4, -sqrt(15)/4

Step-by-step explanation:

cos²x = 1 - sin²sin x

cos²x = 1 - (1/4)²

cos²x = 15/16

cosx = sqrt(15)/4, -sqrt(15)/4

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Arturiano [62]

Answer:

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The Side-Angle-Side rule of congruence

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AnnZ [28]

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jolli1 [7]

Answer:

9 minutes

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mina [271]

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