lim-x-0-1-tan-x-pi-4-tan-2x-pi-4-tan-pi-4-3x-x-3-

Question Number 154652 by EDWIN88 last updated on 20/Sep/21

\lim_{x \to 0} \frac{1 - \tan (x + \frac{π}{4}) \tan (2 x + \frac{π}{4}) \tan (\frac{π}{4} - 3 x)}{x^{3}} = ?

Answered by bramlexs22 last updated on 20/Sep/21

Commented by mnjuly1970 last updated on 22/Sep/21

a n s w e r i s 24

e q u i v a l l a n c e m u s t p r o d u c e

a p o w e r o f 3 \dots