Question: ( 2 ) 4 3 2 lim x 0 x - s i n x x - t a n x c ) : .

(2)432
limx0x-sinxx-tanx
c)
:. C'Hopial's reule
=lim?1-cosx1-sesx
x0,1-sen2x
tanx=sinxcosx
sec3x=f(x)
=2sec2xtanx
=limx00-(-sinx)0-2x2x0.2
=0-2sec2xtanx0-cosx
limx0,0-2(2sec2xtanx)*tanx(sec2xsec2x)
0-cosx
( 2 ) 4 3 2 lim x 0 x - s i n x x - t a n x c ) :

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