A pool of possible jurors consists of 10 men and 9 women. How many different juries consisting of 5 men and 7 women are possible?

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If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

Type the correct answer in each box. spell all the words correctly, and use numerals instead of words for numbers. if necessary, use / for the fraction bar(s).