" S.Find a quatiratic polynumial when the sum of reron is "(1)/(4)" and product of "n" cro is "-1

At 20^@C the [Ag^+] in a saturated solution of Ag_2CrO_4 is 1.5xx10^(-4) M find the solubility product of Ag_2CrO_4 :

If 2cosx(4sin(pi/4+x) sin(pi/4-x)-1)=1 then for x in [0,pi] then the number of solution s is n ,and the sum of solutions is s then find the value of (n,s)

The sum of the series S=Sigma_(n=1)^(infty)(1)/(n-1)! is

The sum of the series S=Sigma_(n=1)^(infty)(1)/(n-1)! is

If the product of n positive numbers is 1, then their sum is

If the product of n positive numbers is 1, then their sum is

If S denotes the sum to infinity and S_(n) , the sum of n terms of the series 1+( 1)/(2) +( 1)/( 4) + ( 1)/( 8 ) +"………….", such that S-S_(n) lt ( 1)/( 1000) , then the least value of n is :

If S be the sum of first (2n+1) terms of an A.P and the sum of terms in odd positions of these (2n+1) terms be S', then show that (n+1)S = (2n+1)S'.

If S denotes the sum to infinity and S_(n) , denotes the sum of n terms of the series 1+(1)/(2)+(1)/(4) + (1)/(8)+ cdots , such that S-S_(n) lt (1)/(100) , then the least value of n is