emmanuelmashao6704
04.01.2021 •
Mathematics
Ştiind că a . b = 2 019 şi a c= 2019, calculați a. (b-c)
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Ответ:
a × ba × c = a (bc) = 0
a × ba × c = 2019-2019 = 0
Step-by-step explanation:
Ответ:
Ответ:
12ft
Step-by-step explanation:
use sin cos tan method
here, we can see 6ft as adj to the angle and the ladder as hypotenuse
so, adj/hyp = cosθ
--> 6/hyp = cos60
--> hyp = 6/cos60
--> hyp, length of ladder = 12ft