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

This is more feedback!
This is the feedback!