calculus walculus herly berly

[1] range of f(x)= is_______?

2 Answers

[2]f(x)= -1+sin a*pi*x ,x=rational
=1+cos b*pi*x ,x=irrational
If f(x) is periodic function then what can we say about a and b?

[3]If (1/(n+m))*a=2
where n=natural no.
m=rational no.
a=integer

then 1/(n+m) should not be greater than 1.
TRUE or FALSE?

plz explain ur answers to all the three problems.

thanx

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