F A + B + C = 1800
, prove that
sinA. cosA+sinB. cosB+sinC. cosC = 2sinA. sin...
Mathematics, 22.06.2021 14:00 philliple481
F A + B + C = 1800
, prove that
sinA. cosA+sinB. cosB+sinC. cosC = 2sinA. sinB. sinC
Answers: 1
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