ÇáÒÇÆÑ ÇáßÑíã:ÊÓÊØíÚ ãÔÇåÏÉ ßá ÇáãæÇÖíÚ ÈÏæä ÔÑØ ÇáÚÖæíÉ áßä ãÔÇÑßÊß ÊÍÊÇÌ ÚÖæíÉ ÇáãäÊÏì
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01-14-2012, 10:48 PM
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#1
ÇáÊÞÑíÈ ÈæÇÓØÉ ãÈÑåäÉ ÇáÞíãå ÇáãÊæÓØå
ÚáÇÁ ÇáÑßÇÈí
ÇÑÓá Çáíßã ãÔÇÑßÊí ãÚ ÇáÍá
Ó/ÌÏ ÈÕæÑå ÊÞÑíÈíå æÈÃÓÊÎÏÇã ãÈÑåäÉ ÇáÞíãå ÇáãÊæÓØå sin〖31°〗
Solution:-
Let f(x)=sinx
f^- (x)=cosx
b=〖31〗^°= 31π/180
a=〖30〗^(° )= (30π )/180=π/6
h=b-a=(22/7)/180=0.0174
f(a)=f(π/6)=sin〖π/6〗=1/2=0.5
f^- (a)=f^- (π/6)=cos〖π/6=√3/2〗=0.866
f(a+h)=f(a)+hf^- (a)
f(31π/180)=f(π/6)+hf^- (π/6)
f(〖31〗^° )=0 .5+(0.0174 )(0.866)
sin〖〖31〗^° 〗=0.5+0.015
sin〖〖31〗^° 〗=0.515
ãÚ ÇáÊÞÏíÑ ÇáÇÓÊÇÐ ÚáÇÁ åÏÇÈ ÇáÑßÇÈí
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01-15-2012, 03:22 PM
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#2
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01-15-2012, 10:28 PM
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#3
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