Question

How do you work these types of problems out:
Problem type A: √100
Problem type B: -√16
Problem type C: 1.1 ^ 2
Problem type D: (-18) ^2
Problem type E: √36 + √64

Answer 1

\[100=10\times 10\]

Answer 2

okay.

Answer 3

\[10\times10=10^2\]

Answer 4

alright.

Answer 5

type b?

Answer 6

@Jonask

Answer 7

please?

Answer 8

For B: \[4^2=16\] So th answer is -4

Answer 9

\[-(\pm4)=\mp4\]

Answer 10

i really dont get it

Answer 11

For C: It's easy.. You just do 1.1 * 1.1

Answer 12

i do not get b.

Answer 13

Aoh, You don't know the concept of square roots right?

Answer 14

no.

Answer 15

\[\sqrt{16}= \pm4\]
\[-\sqrt{16}= -(\pm)4 = \mp4\]

Answer 16

B. is basically saying -1 * square root 16. Think what number multiplied by itself equals 16. Then multiply it by -1.

Answer 17

can i give yo the whole list of problems? this is really difficult for me.

Answer 18

a^2 = a*a
a^2 = b
The square root of "b" would be "a". "a" was squared in order to equal "b" so it's the sqaure root.

Answer 19

\[\sqrt{16} = \pm4\]
but in general only principle value (i.e. +4) is taken.
so if you consider only principle value then it is \[-(\sqrt{16})=-(4)=-4\]

Answer 20

Okay lets take B as an example.

Find \[-\sqrt{16}\]

Square of 16= 4^2=16

\[-\sqrt[2]{4^2}\] The square root always has the index 2 so just imagine that you're cancelling the index by the 2.

Answer 21

Do you get it?!

Answer 22

-sigh- no.

Answer 23

couldnt you do a simpler explanation?

Answer 24

Simpler than that? What don't you get?

Answer 25

what grade are you in,aroub?

Answer 26

When you square a number (ex 10^2) you multiply it by itself: 10 * 10
10 * 10 = 100
so 10^2 = 100
The square root of 100 would be 10 because it was squared to equal 100. Do you understand?

Problem type A: √100
10 * 10 = 100 so 10 is the square root.

Problem type B: -√16
-1 * √16
4 * 4 = 16 so 4 is the suare root.
4 * -1 = -4

Problem type C: 1.1 ^ 2
What is 1.1 * 1.1?

Problem type D: (-18) ^2
What is -18 * -18?

Problem type E: √36 + √64
What # times itself equals 36?
What # times itself equals 64?
Add them together.

Answer 27

root = begining/source

Answer 28

i will try.

Answer 29

√67

Answer 30

What problem were you working on and how did you get the √67 ?

Answer 31

that is another problem

Answer 32

i will try jazy, then message u.

Answer 33

okay?

Answer 34

Sounds good, although I'm not very sure on how to work out √67

Answer 35

okay.