SOLUTION: How do you write this number in terms of i: {{{ sqrt ( -81 ) }}} ?

SOLUTION: How do you write this number in terms of i: {{{ sqrt ( -81 ) }}} ?

Algebra.Com

Question 523075: How do you write this number in terms of i: ?
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
How do you write this number in terms of i:
Write it:

extract the square root of 81:

we know the square root of -1 = i, therefore we have
9i
RELATED QUESTIONS
write in terms of i sqrt... (answered by kim15432)

Express in simplest form, in terms of i. 2[SQRT(-81)] - 2[SQRT(-100)] Please help with (answered by jim_thompson5910)

Tutor could you help me ..thank you Express the number in terms of i - sqrt -9 and (answered by checkley77)

how do i solve this problem?? "if a circle has an area of 81 pi inches squared what is... (answered by mananth)

How do I write csc 2x in terms of csc x? This is what i've done so far: {{{ csc(2x) =... (answered by Alan3354)

I have worked part of this problem, now I am stumped. How do I write sqrt of -108 as an... (answered by Nate)

I don't even know how to start this problem, Write the expression in terms of the... (answered by josmiceli)

write as an common fraction in lowest terms .1875 How do you do... (answered by scott8148)

How do you find the roots of the polynomial," x^4-81=0"? I don't understand this because... (answered by mathsmiles)