document.write( "Question 1199614: if tan 0= 2/3 and angle 0 is a principal angle that lies in a quadrant 3 such that 0° ≤ θ ≤ 360°, determine cos 0 and sin 0 \n" ); document.write( "

Algebra.Com's Answer #833557 by ikleyn(52781) $\"\"$ $\"About$

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\n" ); document.write( "if tan(a)= 2/3 and angle \"a\" is a principal angle that lies in $\"highlight%28cross%28a%29%29\"$ quadrant 3
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document.write( "Right angled triangle with the legs 2 and 3;  the hypotenuse is   = .\r\n" );
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document.write( "sin(a) is ;  sign \"minus\" is because angle \"a\" is in QIII.\r\n" );
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document.write( "cos(a) is ;  sign \"minus\" is due to the same reason.\r\n" );
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