blrdyung180 blrdyung180

28-03-2022
Mathematics

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What is cos 10° cos 8° − sin 10° sin 8° equal to?

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zsm2800 zsm2800

29-03-2022

Answer:

Step-by-step explanation:

cos 10° cos 8° − sin 10° sin 8° = cos(10° + 8°) = cos(18°)

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