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lim (1+8x)^(cscx)
x->0

2007-08-04 10:28:50 · 2 answers · asked by chimstr 1 in Science & Mathematics Mathematics

2 answers

c = lim[(1+8x)^(cscx)]
Take ln of both sides
ln c = ln [lim (1+8x)^(cscx)]
= lim [ csc(x) ln (1+ 8x)]
= lim[ ln(1 +8x)/ sin(x)]
Using l'hopital's rule because plugging in 0 for x gives 1/0.
Taking derivatives of numerator and denominator gives
= lim[ (8 /(1 + 8x)) / cos(x)
ln c = lim ( 8/ 1) = 8
c = exp(8) = 2980.958

2007-08-04 11:13:20 · answer #1 · answered by dr_no4458 4 · 0 0

lim (1+8*x)^(csc(x)) = e^8 ≈ 2980.96
x->0

2007-08-04 17:34:38 · answer #2 · answered by lithiumdeuteride 7 · 0 0

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