Question

38. Every differential equation of the first order represent a family of
(A) linear
3
(B) tangent
(C) curves
(D) all of these
39. Usually d2z/dx2 denote by the letter
(A) p
(B) 9
(C) r
(D) s​

Answer 1

Answer:

39. Usually d2z/dx2 denote by the letter

(A) p

38

(B) tangent