Question Number 104838 by bramlex last updated on 24/Jul/20

lim_(x→0)  ((cos  ^3 (8x)−1)/(6x^2 )) ?

Answered by john santu last updated on 24/Jul/20

lim_(x→0)  (((cos 8x−1)(cos ^2 8x+cos 8x+1))/(6x^2 ))  lim_(x→0) ((−2sin ^2 4x)/(6x^2 )) × 3 = −((16×3)/3)  = −16  (JS ⊛)

Commented bybramlex last updated on 24/Jul/20

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