Question

http://prntscr.com/38ta3j

C

Answer 1

@NickDantzlerward

Answer 2

Correct. C
As sqrt(any negative number) = iota (i) = not a real root

Answer 3

:)

Answer 4

Find all the real cube roots of 0.000027.
A. 0.03 and -0.03

B. 0.0009 and -0.0009

C. 0.0009

D. 0.03

Answer 5

@Aditi_Singh

Answer 6

I believe it's D.

Answer 7

0.000027 = 27/1000000
cube root of (1000000) is 100 {group 3 zeros}
and cube root of 27 is 3 ,

So you get cube root of this no. as : 3/100 = 0.03

Answer 8

and, just for clarification @Yacoub1993 , cube(-0.03) = -0.000027
Hence it can't be A

Answer 9

i got it thnxs