3 years ago

What is the exact value of cos 225º cos 75°?

Mathematics

2 answers:

love history [14]3 years ago

5 0

Answer:

$-\frac{\sqrt{3} -1}{4}$

Step-by-step explanation:

julsineya [31]3 years ago

3 0

Answer:

√

−

Step-by-step explanation:

i dont kno the other one

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