document.write( "Question 931800: If sin (x+y)=0.9 and sin(x-y)=0.6, determine (sin x)(cos y). \n" ); document.write( "

Algebra.Com's Answer #568844 by tommyt3rd(5050) $\"\"$ $\"About$

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sinxcosy=(sin(x+y)+sin(x-y)/2=1.5/2=0.75 \n" ); document.write( "

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