**TI82** TxtView file generated by CalcText - KouriU FDERIVEFDÿDérivées - FormulesA. Derives usuelles __________________ | f(x) | f'(x) | |-----------------| | k | 0 | |-----------------| | ax+b | a | |-----------------| | x | 1 | |-----------------| | x² | 2x | |-----------------| | x3 | 3x² | |-----------------| | X^n | nX^(n-1) | |-----------------| | 1/x | -(1/x²) | |-----------------| | R²x | 1/2R²x | |-----------------| | cos x| -sin x | |-----------------| | sin x| cos x | |______|__________| B. Operations (u+v)'=u'+v' (ku)'=ku' (uv)'=u'v+uv' (1/v)'=-(v'/v²) (u/v)'=(u'v-uv')/v² (u^n)' = nu'u^(n-1) (cos (u))' = -u' sin (u) (sin (u))' = u' cos (u) C. Equations de Tangentes y = f'(a)(x-a)+f(a) si f est derivable en a alors : - f est continue en a - la réciproque est fausseÿAÖ