in AKAl. r//r QEOMEll;) H. IU II, 



la Write an equation which shall represent tho combined loci of ( 1 ). 

 (L), anl (.1) of Ait 



Discuss and construct the loci of the equations : 



19. (jc-y)(y-taux) = 0. 22. y = x. 23. p = a* cos 'J <9. 



20. z-y = 0. 23. y = x*. 26. p =30. 



21. x*-y< = 0. 24. y =10". 27 p =asin20. 



28. Show that the following pairs of curves intersect each other in 

 two coincident points ; i.e., are tangent to each other. 



9**-4y+54;r-16y + 29 = (U 

 ir>;r-8y + ll=0. ) 



29. Find the points of intersection of the curves 



+=id |-=i- 



