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If k in I sucht that (lim)(xvecoo)("cos...

If `k in I` sucht that `(lim)_(xvecoo)("cos"(kpi)/4)^(2n)-(cos-(kpi)/6)^(2n)=0,` then (a) `k` must not be divisible by 24 (b) `k` is divisible by 24 of `k` is divisible neither by 4 nor by 6 (c)`k` must be divisible by 12 but not necessarily by 24 (d) none of these

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CENGAGE PUBLICATION-LIMITS AND DERIVATIVES-All Questions
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