document.write( "Question 747131: What are the x's of: ((sin^2)x) +(cos)x) +1)) = 0 \n" ); document.write( "

Algebra.Com's Answer #454732 by lwsshak3(11628) $\"\"$ $\"About$

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What are the x's of: ((sin^2)x) +(cos)x) +1)) = 0
\n" ); document.write( " $\"sin%5E2%28x%29%2Bcos%28x%29%2B1=0\"$
\n" ); document.write( " $\"1-cos%5E2%28x%29%2Bcos%28x%29%2B1=0\"$
\n" ); document.write( " $\"-cos%5E2%28x%29%2Bcos%28x%29%2B2=0\"$
\n" ); document.write( " $\"cos%5E2%28x%29-cos%28x%29-2=0\"$
\n" ); document.write( "(cos(x)-2)(cos(x)+1)=0
\n" ); document.write( "cos(x)=2 (reject,(-1 ≤ cosx ≤ 1)
\n" ); document.write( "cos(x)=-1
\n" ); document.write( "x=π \n" ); document.write( "

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