16. log x logy log 2 q' + ab + b'+bc+c+ ca+a? (1) 0 (2)-1 (3) 1 (4) 2

a, b, c ar the length of sides BC, CA, AB respectively of DeltaABC satisfying log(1+(c )/(a))+log a-log b=log2 . Also the quadratic equation a(1-x^(2))+2bx+c(1+x^(2))=0 has two equal roots. Q. a, b, c are in :

a, b, c ar the length of sides BC, CA, AB respectively of DeltaABC satisfying log(a+(c )/(a))+log a-log b=log2 . Also the quadratic equation a(1-x^(2))+2bx+c(1+x^(2))=0 has two equal roots. Q. Measure of angle C is :

a, b, c are the length of sides BC, CA, AB respectively of DeltaABC satisfying log(1+(c )/(a))+log a-log b=log2 . Also the quadratic equation a(1-x^(2))+2bx+c(1+x^(2))=0 has two equal roots. . Measure of angle C is :

int(log(x+1)-log x)/(x(x+1))dx= (A) log(x-1)log x+(1)/(2)(log x-1)^(2)-(1)/(2)(log x)^(2)+c (B) (1)/(2)(log(x+1))^(2)+(1)/(2)(log x)^(2)-log(x+1)log x+c (C) -(1)/(2)(log(x+1)^(2))-(1)/(2)(log x)^(2)+log x*log(x+1)+c (D) [log(1+(1)/(x))]^(2)+c

If (a+(log)_4 3)/(a+(log)_2 3)=(a+(log)_8 3)/(a+(log)_4 3)=b ,then b is equal to 1/2 (2) 2/3 (c) 1/3 (d) 3/2

If (a+(log)_4 3)/(a+(log)_2 3)=(a+(log)_8 3)/(a+(log)_4 3)=b ,then b is equal to 1/2 (2) 2/3 (c) 1/3 (d) 3/2