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(lim)(x->0)((sqrt(1+xsin x)-sqrt(cos2x))...

`(lim)_(x->0)((sqrt(1+xsin x)-sqrt(cos2x))/(tan^2(x//2)))` is equal to `1/6` b. `6` c.`3` d. `2`

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CENGAGE PUBLICATION-LIMITS AND DERIVATIVES-All Questions
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  2. Let f(x) be the fourth degree polynomial such that f^(prime)(0)-6,f(0)...

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