If the line pairs ax2 + 2hxy + by2 = 0 and a'x2 + 2h'xy + b'y2 = 0 have
the same bisectors, prove that h(a' - b') = h'(a - b)

7. d. 64

8. i. 32

9. c. 125

10. j. none of the above

11. d. 81

12. i. 216

13. e. none of the above

14. g. 240

15. e. none of the above

16. g. 32

17.   e. none of the above

these sign is used to tell weather the number is greater or less than the number   <   or >     but this sign means its equal =    

hope this you and

step-by-step explanation: