document.write( "Question 1113736: If csc(α) = 3, where 0 < α <π /2, and β is a Quadrant II angle with tan(β) = −7, find
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Algebra.Com's Answer #728831 by ikleyn(52863) $\"\"$ $\"About$

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document.write( "1.  If csc(a) = 3 and the angle \"a\" is in QI, it implies that\r\n" );
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document.write( "    sin(a) =   and  cos(a) =  =  =  =  = .\r\n" );
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document.write( "2.  If tan(b) = -7  and the angle \"b\" is in QII, it implies that\r\n" );
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document.write( "    cos^2(b) =  =  =   and  cos(b) = - =  =  = .\r\n" );
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document.write( "    Notice that cos(b) is negative, since \"b\" is in QII.\r\n" );
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document.write( "    Next, knowing cos(b), you can calculate\r\n" );
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document.write( "    sin(b) =  =  =  = .\r\n" );
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document.write( "Answer.  sin(a) = .  cos(a) = .  sin(b) = .  cos(b) = .\r\n" );
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