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(lim)(x->4)(int2sec^2\ f(t)dt)/(x^2-(pi^...

`(lim)_(x->4)(int2sec^2\ f(t)dt)/(x^2-(pi^2)/(16))` equals a.`8/pif(2)` b. `2/pif(2)` c.`2/pif(1/2)` d. `4f(2)`

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