51. using rolle's theorem, the equation agx" +a,x"+...+an = 0 has atleast one root between o and 1, if a) n-1'*8n-10 b) +.+a-20 + +. .+ an0 c)n+1 n d) nay + (n-

51. Using Rolle's theorem, the equation agx" +a,x"+...+an = 0 has atleast one root between O and 1, if A) n-1'*8n-10 B) +.+a-20 + +. .+ an0 C)n+1 n D) nay + (n- I}a1t...+an- 1