For natural numbers m, n if `(1-y)^(m)(1+y)^(n) = 1+a_(1)y+a_(2)y^(2) + "……."` and `a_(1) = a_(2) = 10`, then `(m,n)` is :

For natural number m, n if (1-y)^(m)(1+y)^(n)=1+a_(1)y+a_(2)y^(2)+ . . . . ., and a_(1)=a_(2)=10 , then (m,n) is

For natural numbers m , n if (1-y)^(m)(1+y)^(n)=1+a_(1)y+a_(2)y^(2)+a_(3)y^(3)+.....,anda_(1)=a_(2)=10 , then-

For natural numbers m,n, if (1-y)^(m)(1+y)^(n)=1+a_(1)y+a_(2)y^(2)+... and a_(1)=a_(2)=10 then (A)m n(C)m+n=80(D)m-n=20

For natural numbers m,n,quad if(1-y)^(m)(1+y)^(n)=1+a_(1)y+a_(2)y^(2)+..., and a_(1)=a_(2)=10, then m n c.m+n=80 d.m-n=20

For the natural number m, n, if ( 1- y ) ^(m) (1 + y) ^( n) =1 + a _(1) y + a _(2) y ^(2) + ...+ a _( m + n) y ^( m +n) and a _(1) = a _(2) = 10, then the value of (m+n) is equal to :

If a_(n+1)=a_(n-1)+2a_(n) for n=2,3,4, . . . and a_(1)=1 and a_(2)=1 , then a_(5) =

If a_(1),a_(2),a_(3),a_(4),,……, a_(n-1),a_(n) " are distinct non-zero real numbers such that " (a_(1)^(2) + a_(2)^(2) + a_(3)^(2) + …..+ a_(n-1)^(2))x^2 + 2 (a_(1)a_(2) + a_(2)a_(3) + a_(3)a_(4) + ……+ a_(n-1) a_(n))x + (a_(2)^(2) +a_(3)^(2) + a_(4)^(2) +......+ a_(n)^(2)) le 0 " then " a_(1), a_(2), a_(3) ,....., a_(n-1), a_(n) are in

If a_(1),a_(2),a_(3),a_(4),,……, a_(n-1),a_(n) " are distinct non-zero real numbers such that " (a_(1)^(2) + a_(2)^(2) + a_(3)^(2) + …..+ a_(n-1)^(2))x^2 + 2 (a_(1)a_(2) + a_(2)a_(3) + a_(3)a_(4) + ……+ a_(n-1) a_(n))x + (a_(2)^(2) +a_(3)^(2) + a_(4)^(2) +......+ a_(n)^(2)) le 0 " then " a_(1), a_(2), a_(3) ,....., a_(n-1), a_(n) are in