mari0869
05.04.2021 •
Mathematics
Evaluate sin(arccos(-7/sqrt 130))
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Ответ:
a1= 3
a2 = 4a(2-1)+2
= 4a1 +2
= 4( 3)+ 2 = 14
a3= 4a(3-1) +2
= 4a2 +2
= 4(14)+2
= 56+2 = 58
a4= 4a(4-1)+2
= 4a3 +2
= 4( 58) + 2
= 232+2= 234