document.write( "Question 924526: I cant seem to wrap my head around this problem to even begin solving, maybe im just overthinking but here is my problem \"If sin(beta)= 1/8 and is 180°\n" ); document.write( "

Algebra.Com's Answer #560895 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
From the identity,
\n" ); document.write( " $\"sin%5E2%28beta%29%2Bcos%5E2%28beta%29=1\"$
\n" ); document.write( " $\"%281%2F8%29%5E2%2Bcos%5E2%28beta%29=1\"$
\n" ); document.write( " $\"cos%5E2%28beta%29=63%2F64\"$
\n" ); document.write( " $\"cos%28beta%29=0+%2B-+sqrt%2863%29%2F8\"$
\n" ); document.write( "However since there is a limit on $\"beta\"$ ( $\"180%3C+beta+%3C270\"$ ), you choose the negative value because in that range, the cosine is negative.
\n" ); document.write( "However, in that range, the sine is also negative.
\n" ); document.write( "Are you sure it isn't $\"sin%28beta%29=-1%2F8\"$ ??
\n" ); document.write( " \n" ); document.write( "

\n" );