Mastering Olympiad Mathematics
A collection of intriguing competition level problems for secondary school students.
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show that sum from n=0 to 88 of 1/(cos nk cos (n+1)k)=(cos k)/sin^2 k)
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No posts with label
show that sum from n=0 to 88 of 1/(cos nk cos (n+1)k)=(cos k)/sin^2 k)
.
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