### Math 10 Chapter 2 - Part B

 1. For equations x + n= 6 and x + m = 3 the relation free from x is n | m = 3.a) Trueb) False
 2. One equation is required for elimination of one variable.a) Trueb) False
 3. The relation free from 'x' for equations 2x + 3y = 5 and x | y = 2 is 5y =1a) Falseb) True
 4. An independent relation of 'x' for equation nx2-m=0 and px2 + q = 0 is mp = qna) Falseb) True
 5. If x-y = t and x2 + y2 = t2, then relation free from t is xy = 2a) Falseb) True
 6. If x/c + c/x = 2a and x/c | c/x = 3b, then relation free from x is 4a2 | 9b2 = 4a) Falseb) True
 7. The eliminant by eliminating 'x' for equation x | pq = 0 and x/n = m is pq+ nm = 0a) Falseb) True
 8. If x | 1/x = 3a and x2 + 1/x2 = b2 then relation free from x is b2 | 9a2 = 2a) Trueb) False
 9. If x + 1/x = n and x2 + 1/x2= m2 then independent relation of x is n2 = m2 + 2a) Falseb) True
 10. Independent relation of 't' for equations at = x and 2at = y is x = ya) Falseb) True
 11. If x + a = 0 and b/x = c then relation independent of x is b + ac = 0a) Falseb) True
 12. If x/a + a/x = 7 then x2/a2 + a2/x2 = 49a) Trueb) False
 13. Eliminating t from x + t = 6 and y | t = 7 we get x + y = 1a) Falseb) True
 14. Elimination means to eliminate a certain variablea) Falseb) True
 15. After doing elimination process, the equation obtained is always quadratic .a) Trueb) False
 16. From standard quadratic equations, variable is eliminated by cross multiplication method.a) Trueb) False
 17. A variable may be eliminated by comparison or by substitution method.a) Trueb) False
 18. If x/a + a/x = m and x3/a3 + a3/x3 = n, then relation free from x is m3 =na) Falseb) True

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