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(1+cosA)(1+cos3A)(1+cos5A)(1+cos7A) \large (1+\cos A)(1+\cos 3A)(1+ \cos 5A)(1+\cos 7A) (1+cosA)(1+cos3A)(1+cos5A)(1+cos7A)
What is the value of the expression above if A=22.5∘A = 22.5^\circ A=22.5∘?
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