x=0.705
sin0.705≈L1(0.705)=0.6480257291.
cos0.702
L1(x)=
x 0.70
= 0.64803113x+1.2184639782
0.70 0.71×0.7648421872
x=0.702
2.
cos0.702≈L1(0.702)=0.76354612494.
(
2-10).
0.4
0.6
sinx
0.47943
0.64422
0.6 0.5
×0.56464+x 0.6(0.57891(0.5 00.+
.6)5)××(0(0..557891 0.7)
0.7)
×0.47943(0.7 0.5)×(0.7 0.6)×0.64422
≈
0.54714.
9