document.write( "Question 950974: Suppose 0\n" ); document.write( "

Algebra.Com's Answer #580720 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
You know that,
\n" ); document.write( " $\"cos%5E2%28theta%29%2Bsin%5E2%28theta%29=1\"$
\n" ); document.write( " $\"cos%5E2%28theta%29%2B%287%2F17%29%5E2=1\"$
\n" ); document.write( " $\"cos%5E2%28theta%29=%2817%2F17%29%5E2-%287%2F17%29%5E2\"$
\n" ); document.write( " $\"cos%5E2%28theta%29=%28289-49%29%2F%2817%29%5E2\"$
\n" ); document.write( "Since we know it's in the first quadrant, we only need the positive square root,
\n" ); document.write( " $\"cos%28theta%29=sqrt%28240%29%2F17\"$
\n" ); document.write( " $\"cos%28theta%29=%284%2F17%29sqrt%2815%29\"$
\n" ); document.write( " \n" ); document.write( "

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