document.write( "Question 668478: Find sin(theta)' givin that tan(theta)= -sqrt(7)/2' with sec(theta) >0 \n" ); document.write( "
Algebra.Com's Answer #415669 by solver91311(24713)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "But secant is the reciprocal of cosine, so if secant is positive, cosine is positive. Tangent is sine over cosine, so if cosine is positive sine is negative when tangent is negative.\r
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\n" ); document.write( "My calculator said it, I believe it, that settles it
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