Home
Class 12
MATHS
" If "a+b=1," then "sum(r=0)^(n)^(n)C(r)...

" If "a+b=1," then "sum_(r=0)^(n)^(n)C_(r)a^(r)b^(n-r)" is "

Promotional Banner

Similar Questions

Explore conceptually related problems

If a+b=1, then sum_(n=0)^(n)C(n,r)a^(r)b^(n-r) is equal to '

In a DeltaABC , prove that Sigma_(r=0)^(n)""^(n)C_(r)a^(r)b^(n-r) cos ( r B-(n-r)A)=c^(n) .

In a DeltaABC , prove that Sigma_(r=0)^(n)""^(n)C_(r)a^(r)b^(n-r) cos ( r B-(n-r)A)=c^(n) .

Let a, b, c be the sides of Delta ABC opposite to angles A, b,C respecitvely. Let alpha = sum_(r=0)^(n) ""^(n)C_(r) b^(n-r) c^(r) cos{rB - (n-r)C} and beta = sum_(r=0)^(n) ""^(n)C_(r) b^(n-r) c^(r) sin{rB - (n-r)C} Statement -1: alpha = alpha^(n) Statement-2: beta = alpha^(n)

Let a, b, c be the sides of Delta ABC opposite to angles A, b,C respecitvely. Let alpha = sum_(r=0)^(n) ""^(n)C_(r) b^(n-r) c^(r) cos{rB - (n-r)C} and beta = sum_(r=0)^(n) ""^(n)C_(r) b^(n-r) c^(r) sin{rB - (n-r)C} Statement -1: alpha = alpha^(n) Statement-2: beta = alpha^(n)

If n in N, then sum_(r=0)^(n) (-1)^(r) (""^(n)C_(r))/(""^(r+2)C_(r)) is equal to .

If n in N, then sum_(r=0)^(n) (-1)^(n) (""^(n)C_(r))/(""^(r+2)C_(r)) is equal to .