From History of Physics at Sussex
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− | <span class="texhtml">''s | + | <span class="texhtml">''s''i''n''<sup>2</sup>(''x'') + ''c''o''s''<sup>2</sup>(''x'') = 1</span> |
Revision as of 09:07, 29 March 2011
sin2(x) + cos2(x) = 1