Question

(142)
Cr
15. Show that i) "C, +2"C_1 +" C,-2
=
C + 3 n-3 C-1 + 3 n-3 C, -2
(n-3)
-3 =" C
(n-3)​

Answer 1

Answer:

i dont know

Step-by-step explanation:

i am samll boy and i want ponits it is why i dont give answer and dont report me i want to ask qution :(((