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In XYZ, and X = 90° , and cos Z = 7/ 25. Find sin Z and tan Y.

 Feb 4, 2022
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In right-angled triangle XYZ with X = 90o, X = 25, Z = 7, Y = \({sqrt(25^2-7^2) = sqrt(625 - 49) = sqrt(576) = 24}\)

tan Y = \(7/24\)

cos Z = \({7\over 25}. sinZ = sqrt( 1 - (cos Z)^2) = 24/25.\)

 Feb 4, 2022

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