1.

Let f(x) is a real valued function defined by f(x)=x^(2)+x^(2) int_(-1)^(1) tf(t) dt+x^(3) int_(-1)^(1)f(t) dt then which of the following hold (s) good?

Answer»

` int_(-1)^(1) tf(t) dt=(10)/(11)`
`f(1)+f(-1)=(30)/(11)`
`int_(-1)^(1)t f (t) dt gt INT _(-1)^(1) f(t) dt`
`f(1)-f(-1)=(20)/(11)`

ANSWER :B::D


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