document.write( "Question 958639: Find all possible values of cos(t) when sin(t) = -3/4. If there is more than one answer, enter them in a list separated by commas. Enter either an exact expression or a number correct to five decimal places.
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Algebra.Com's Answer #585879 by lwsshak3(11628)\"\" \"About 
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Find all possible values of cos(t) when sin(t) = -3/4. If there is more than one answer, enter them in a list separated by commas. Enter either an exact expression or a number correct to five decimal places.
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\n" ); document.write( "For [0, 2π)
\n" ); document.write( "sin(t)=-3/4( in quadrants III and IV where sin<0
\n" ); document.write( "cos(t)=±√(1-sin^2(t))=±√(1-9/16)=-±(7/16)=-√7/4 (in quadrant III), √7/4 (in quadrant IV)
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