O USAGE DES TABLES TRIGOMOIIÉTRIQVES

III\Cas. Données' a ^ 6, C.

FOUniLES.

. a sinC

usinC sinA

SOLCTIONS.

lQga[2,683 86] = </= 162

logsmC[78"28' 7', 60 = rf=43'

97a 7,991 I4l2 3oi

log«rsinC = 0,4199043

logcosCr78*28'io'' "1

L ~ *,4j d= — io32

logacosC[o,536 5o86] b = 1,0020220

b — logflf cosC = o, 465 5i34

rf=93

log

logtangA[79°57'40^93] =

' log sin A [ »

rf = 37

loge [2,670 57] =