Question

which of the following is the correct notation for sqrt-98+71

a. 7i sqrt 2+71
b. 71+7i sqrt2
c. -7i sqrt 2+71
d. 7 sqr 2+71i

Answer 1

Is it \(\sqrt{-98}+71\) or \(\sqrt{-98+71}\)?

Answer 2

first one @Jhannybean

Answer 3

@Jhannybean

Answer 4

\[\sqrt{-98} \implies \color{red}{\sqrt{-1}}\cdot \sqrt{98}\]\[\color{red}{i=\sqrt{-1}}\]So substitute i for the square root of -1 and add +71

Answer 5

ok..

Answer 6

@Jhannybean ?