If f(x)={x, when x is rational, 1-x, when x is irrational , then

If (m_r , 1/m_r), r = 1, 2, 3, 4 are concyclic points and f(x) = x , when x is rational = 1 - x , when x is irrational and a is a point where f(x) is continuous, then m_1 m_2 m_3 m_4 = (A) a (B) 2a (C) -2a (D) none of these

If (m_r , 1/m_r), r = 1, 2, 3, 4 are concyclic points and f(x) = x , when x is rational = 1 - x , when x is irrational and a is a point where f(x) is continuous, then m_1 m_2 m_3 m_4 = (A) a (B) 2a (C) -2a (D) none of these

If f(x)={x, when x is rational and 0, when x is irrational g(x)={0, when x is rational and x, when x is irrational then (f-g) is A. one-one and onto B. neither one-one nor onto C. many one and onto D one-one and into

If f(x)={x, when x is rational and 0, when x is irrational g(x)={0, when x is rational and x, when x is irrational then (f-g) is A. one-one and onto B. neither one-one nor onto C. many one and onto D one-one and into

If f(x)={x, when x is rational and 0, when x is irrational g(x)={0, when x is rational and x, when x is irrational then (f-g) is

Two mappings f:R to R and g:R to R are defined as follows: f(x)={(0,"when x is rational"),(1,"when x is irrational"):} and g(x)={(-1,"wnen x is rational"),(0,"when x is irrational"):} then the value of [(gof)(e)+(fog)(pi)] is -

Two mappings f:R to R and g:R to R are defined as follows: f(x)={(0,"when x is rational"),(1,"when x is irrational"):} and g(x)={(-1,"wnen x is rational"),(0,"when x is irrational"):} then the value of [(gof)(e)+(fog)(pi)] is -

The functions RR,g:R R are defined as f(x)={0, whenxis rational and 1 when x is irrational } and g(x)={-1 when x is rational and 0 when x~ is~ irrational}~ find~ fog (pi) and gof(e)