document.write( "Question 1144167: Can you help me with this problem?
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Algebra.Com's Answer #765180 by ikleyn(52803)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "The fact that  θ=cos^-1(-4/5)  means  that  cos(θ) = \"-4%2F5\"  and \"theta\" in the angle in QII.\r\n" );
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document.write( "Then  csc(θ) = \"1%2Fsin%28theta%29\" = \"1%2Fsqrt%281-cos%5E2%28theta%29%29\" = \"1%2Fsqrt%281+-+%28-4%2F5%29%5E2%29\" = \"1%2Fsqrt%281+-16%2F25%29%29\" = \"1%2Fsqrt%289%2F25%29\" = \"1%2F%28%283%2F5%29%29\" = \"5%2F3\".    ANSWER\r\n" );
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\n" ); document.write( "\n" ); document.write( "Notice that the final answer is positive, since both sine and csc functions are positive in QII.\r
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