`{:(,'A',,'B'),(1, int(dx)/(sqrt(a^(2)-x^(2))),(i),(1)/(a) "sin"^(-1)(x)/(a)),(2, int (dx)/(a^(2)+x^(2)),(ii), "sin"^(-1)(x)/(a)+c),(3, int (dx)/(x^(2)-a^(2)),(iii),(1)/(2a)"log" (a+x)/(a-x)),(4, int (dx)/(a^(2)-x^(2)), (iv),log [x+sqrt(a^(2)+x^(2))]),(5, int (dx)/(a^(2)+x^(2)),(v), (1)/(2a)"log"(x-a)/(x+a)+c),(6, int (1)/(sqrt(x^(2)-a^(2)))dx, (vi), (1)/(a) "sec"^(-1) (x)/(a)),(7, int (1)/(x sqrt (x^(2)-a^(2)))dx, (vii),log (x+sqrt(x^(2)-a^(2)))):}`

Answer

`1 to (ii), 2.to (i), 3. to (v), 4. to (iii) , 5. to (iv) 6. to (vii), 7. to (vi)`