Question

Qual equação deverá ser aplicada ?

Answer 1

{\displaystyle x^{3}-9x^{2}-7=4}{\displaystyle 3sen(x)+25cos(x)=18}{\displaystyle 3x^{4}-x^{3}+5x^{2}-34x+1211=0}{\displaystyle tg(3y-25)+sen^{3}(cos(y^{2}+4y-1))=255}

Answer 2

U=R.i

90=15.i

i=90/15

i=6A