Engenharia

<p>Se&nbsp;<img alt="x element of left parenthesis 0 comma straight pi right parenthesis" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»x«/mi»«mo»§#8712;«/mo»«mo»(«/mo»«mn»0«/mn»«mo»,«/mo»«mi mathvariant=¨normal¨»§#960;«/mi»«mo»)«/mo»«/math»" src="https://cdn.mesalva.com/uploads/cache/14a159c22b00a13a365804659f28a1ae.png" />, e sabendo que&nbsp;<img alt="cos left parenthesis x right parenthesis equals minus 0 comma 6" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»cos«/mi»«mo»(«/mo»«mi»x«/mi»«mo»)«/mo»«mo»=«/mo»«mo»-«/mo»«mn»0«/mn»«mo»,«/mo»«mn»6«/mn»«/math»" src="https://cdn.mesalva.com/uploads/cache/21a855a8284f6a414a5fe468d7df3168.png" />, ent&atilde;o&nbsp;<img alt="s e n left parenthesis x right parenthesis" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»s«/mi»«mi»e«/mi»«mi»n«/mi»«mo»(«/mo»«mi»x«/mi»«mo»)«/mo»«/math»" src="https://cdn.mesalva.com/uploads/cache/030c5a302354a907d398ab97a3bd4533.png" />&nbsp;vale</p>


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