11). \( \Large 3x^{2}+8x+4=0; 4y^{2}-19y+12=0 \)
| A). If x>y |
| B). \( \Large If \ x\ge y \) |
| C). lfx |
| D). \( \Large If \ x \le y \) |
|
12). \( \Large x^{2}-x-12=0; y^{2}+5y+6=0 \)
| A). If x>y |
| B). \( \Large If \ x\ge y \) |
| C). lfx |
| D). \( \Large If \ x \le y \) |
|
13). \( \Large x^{2}-8x+15=0; y^{2}-3y+2=0 \)
| A). If x>y |
| B). \( \Large If x\ge y \) |
| C). lfx |
| D). \( \Large If x \le y \) |
|
14). \( \Large x^{2}-32=112; y-\sqrt{169}=0 \)
| A). If x>y |
| B). \( \Large If x\ge y \) |
| C). lfx |
| D). If x = y or relation cannot be established |
|
15). \( \Large x-\sqrt{121}=0; y^{2}-121=0 \)
| A). If x>y |
| B). \( \Large If \ x\ge y \) |
| C). lfx |
| D). If x = y or relation cannot be established |
|
16). \( \Large x^{2}-16=0; y^{2}-9y+20=0 \)
| A). If x>y |
| B). \( \Large If \ x\ge y \) |
| C). lf x |
| D). \( \Large If \ x \le y \) |
|
17). If \( \Large x^{2} = 6 + \sqrt{6+\sqrt{6 + \sqrt{6+.... ...... \infty}}} \) then what is one of the values of x equal to?
|
18). The sum of a number and its reciprocal is \( \Large \frac{10}{3} \), then the numbers are
| A). \( \Large 3, \frac{1}{3} \) |
| B). \( \Large 3, -\frac{1}{3} \) |
| C). \( \Large -3, \frac{1}{3} \) |
| D). \( \Large -3, -\frac{1}{3} \) |
|
19). In solving a problem, one student makes a mistake in the coefficient of the first degree term and obtains -9 and -1 for the roots. Another student makes a mistake in the constant term of the equation and obtains 8 and 2 for the roots. The correct equation was
| A). \( \Large x^{2}+10x+9=0 \) |
| B). \( \Large x^{2}-10x+16=0 \) |
| C). \( \Large x^{2}-10x+9=0 \) |
| D). None of the above. |
|
20). The difference in the roots of the equation \( \Large 2x^{2}-11x+5=0 \) is
| A). 4.5 |
| B). 4 |
| C). 3.5 |
| D). 3 |
|
