Statement -I : `tan ^(-1)""((3)/(4))+tan ^(-1) ""((1)/(7))= (pi)/(4)`
statement -II: `"for" x gt 0 , y gt 0`
`tan^(-1 ) ((x)/(y))+tan^(-1)""((y-x)/(y+x))=(pi)/(4)`

Options

A. Statement - I is true statement -II is true , statement -II is a correct explanation for statement -I
B. Statement -I is true statement -II is ture : statement -II statement -II is not a correct explantion for statement -I
C. Statement -I is ture statement -II is False
D. Statement -I is False , statement -II is true .

Answer

d