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Margaret [11]
4 years ago
14

Find the exact value of the expression cos10°cos20°-sin10°sin20° Please Help

Mathematics
1 answer:
Svet_ta [14]4 years ago
5 0
Cos10 cos20 -sin10 sin20 = cos(10+20) = cos30 = √3/2
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<h2>- 56,667cents</h2><h2>- 6.17%</h2>

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EFF = (1 + r /n)^n - 1

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