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.


2. One equation is required for elimination of one variable.


3. The relation free from 'x' for equations 2x + 3y = 5 and x | y = 2 is 5y =1


4. An independent relation of 'x' for equation nx2-m=0 and px2 + q = 0 is mp = qn


5. If x-y = t and x2 + y2 = t2, then relation free from t is xy = 2


6. If x/c + c/x = 2a and x/c | c/x = 3b, then relation free from x is 4a2 | 9b2 = 4


7. The eliminant by eliminating 'x' for equation x | pq = 0 and x/n = m is pq+ nm = 0


8. If x | 1/x = 3a and x2 + 1/x2 = b2 then relation free from x is b2 | 9a2 = 2


9. If x + 1/x = n and x2 + 1/x2= m2 then independent relation of x is n2 = m2 + 2


10. Independent relation of 't' for equations at = x and 2at = y is x = y


11. If x + a = 0 and b/x = c then relation independent of x is b + ac = 0


12. If x/a + a/x = 7 then x2/a2 + a2/x2 = 49


13. Eliminating t from x + t = 6 and y | t = 7 we get x + y = 1


14. Elimination means to eliminate a certain variable


15. After doing elimination process, the equation obtained is always quadratic .


16. From standard quadratic equations, variable is eliminated by cross multiplication method.


17. A variable may be eliminated by comparison or by substitution method.


18. If x/a + a/x = m and x3/a3 + a3/x3 = n, then relation free from x is m3 =n





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