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The problems you missed are listed below with answers and explanations.  Look over the explanation for each problem so you can understand why you missed it!

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'); resetdisplay(); for(var i = 0; i <5; i++) { ganswer[i] = prompt(question[i],""); if (ganswer[i] == "quit" || ganswer[i] == "QUIT" || ganswer[i] == "Quit") { break; } q++; if (ganswer[i] == answer[i]) { c++; } else { rightans[i] = 0; w++; } resetdisplay(); } for(var i = 0; i < 10; i++) { if (rightans[i] == 0) { expl = expl + explain[i]; } } parent.frames[0].document.write(expl); parent.frames[0].document.write("
"); } question[0] = 'Do trig ratios have inverses?'; question[1] = 'Can you solve equations with trig ratios?'; question[2] = 'How many trig ratios have inverses?'; question[3] = 'To help us solve for different values on a non right triangle we can use the law of what? (the fractional one)'; question[4] = 'Besides the law of sines there is the law of what that can also help with non right triangles?'; answer[0] = 'yes'; answer[1] = 'yes'; answer[2] = '6'; answer[3] = 'sines'; answer[4] = 'cosines'; explain[0] = '#1

All trig ratios have an "arc" function or in other words an inverse function

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Equations that have trig ratios in them, can be solved by using the inverse trig functions.

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All six trig ratios have an inverse function

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The law of sines is a very useful tool for finding values on a non right triangle. The Law of sines also involves fractions

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The law of cosines is a very useful tool for finding values on a non right triangle.

'; rightans[0] = 1; rightans[1] = 1; rightans[2] = 1; rightans[3] = 1; rightans[4] = 1; //-->