Question

Simplify:

i11√-121

Question options:

11


-11


11i


-11i

Answer 1

@jim_thompson5910

Answer 2

@dtan5457 the answer 11 was wrong sir :(

Answer 3

and some others was wrong :(

Answer 4

\[\sqrt{-112} = \sqrt{-1 * 121} = \sqrt{-1}*\sqrt{121}\]

Answer 5

can you retype the original expression please

Answer 6

i^11 sqaure root -121

Answer 7

oh i^11 power ok

Answer 8

\[i^11 = i^1*i^2*i^2*i^2*i^2*i^2\]

Answer 9

@jim_thompson5910

Answer 10

i to the 11th power is (-1)(-1)(-1)(-1)(-1)*i

Answer 11

@EuniceOB97

sorry, but i dont see what i did wrong.

Answer 12

\[i ^{11} = -i\]

Answer 13

-11i ?

Answer 14

\[\sqrt{-121} = \sqrt{-1}\sqrt{121} = 11i\]

Answer 15

11i * -i = -11i^2 = -11*(-1) = 11

Answer 16

i=sqr(-1)
i^2=-1
i^4=1

Answer 17

they say 11 is wrong @DanJS

Answer 18

i dont see why eunice.

Answer 19

i^11+i^1 =i^12=1

Answer 20

It is 11, i just checked on the calculator.

Answer 21

121=11
so the answer =11

Answer 22

\[i ^{11}\sqrt{-121} = 11\]

Answer 23

@EuniceOB97

what others did i do wrong?

Answer 24

please post here so i can find mistakes

Answer 25

for this one i still got 11 so..

Answer 26

Simplify:

i10√-36

Question options:

6


-6


6i


-6i

Answer 27

i^10 everybody

Answer 28

Simplify:

-i8√-400

Question options:

20


-20


20i


-20i

Answer 29

Simplify:


| −11 + i |

Question options:

√122


12


11 + i


11 - i

Answer 30

i to the tenth times square root of -36 is -6i

Answer 31

i got -6i too..

Answer 32

@dtan5457 do you see it ?

Answer 33

the one with the absolute value i do not understand how it is wrong

Answer 34

im still sticking with -20i

Answer 35

for the 2nd q

Answer 36

honestly i dont see a single mistake in my work. maybe your answer key is messed up.

Answer 37

do you guys know what the absolute value one is ?

Answer 38

got nothing but my old explanation^

Answer 39

i^10*sqrt(-36)=i^10*i^1*sqrt(36)=i^(10+1)*6=I^11 6=-i 6

Answer 40

-i^8*sqrt(-400)=-(i^(8+1))*20=-i^9 20=-(i) 20 = -i 20 =-20 i