Question

i am unable to do higher calculations ..the problems seems easy but reaching the final answer seems difficult ...i get confused what to do

Answer 1

what is the problem? what kind of higher calculations?

Answer 2

at the time when it cums to shifting decimal i totally get confused and wonder what to multiply with which number

Answer 3

\[6.67x10^{-11}\times7.36\times10^{22}\times6\times10^{24}\div(3.8\times3.8\times10^{5}\times10^{5}\]

Answer 4

how to solve these type of questions fast which i am unable to do

Answer 5

just multiply all the 10^x stuff first, i.e.\[{6.67\times10^{-11}\times7.36\times10^{22}\times6\times10^{24}\over3.8\times3.8\times10^{5}\times10^{5}}\\={6.67\times7.36\times6\over3.8\times3.8}\times{10^{-11}\times10^{22}\times10^{24}\over10^5\times10^5}\\={6.67\times7.36\times6\over3.8\times3.8}\times10^{25}\]

Answer 6

just for the 10^ part, for their exponents, which is in numerator, it's +, which is in denominator, it's - . Therefore, the exponent number is 11+22+24 -5-5= 47. Now , position it as it is, you have \(\Large 10^{47}\)

Answer 7

the first exponent was -11, so it winds up as \(\cdots\times10^{25}\)

Answer 8

ohh, I am sorry, my computer didn't show the minus sign of it.

Answer 9

If you ever forget how exponents add, just do something with x^3 and x^2.

\[x^3*x^2=(x*x*x)*(x*x)=x^5=x^{3+2}\]

Do the same thing with division, figure it out on your own, it's almost identical to this.

Don't lose sight of the idea that all an exponent is is simply notation to tell you how many times to multiply a number by itself. (Most of the time... lol)

Answer 10

just press calculator dude :D

Answer 11

unfortunately its not allowed in d exams :(

Answer 12

you can use a log book

Answer 13

hahaha, Turing has given the ans alrdy.. also, rmb that we dun giv ans, we shud giv solution instead :)

Answer 14

Do 10 powers seperately and then the significant numbers for example


calculate

\[\frac{2 \times 10^{-13} \times -5 \times 10^{+21} }{6 \times 10^{13} \times 3 \times 10^{5}}\]

Answer 15

can u try this?

Answer 16

\[-10^{-27}\div12\]

Answer 17

correct ??

Answer 18

wait :P

Answer 19

first bring everything to numerator

\[10^{-13} \times 10^{-13} \times 10^{21} \times 10^{-5}\]

Answer 20

is that ok? makes sense?
when u bring denominator exponents to numerator their signs flip! yeaa?

Answer 21

yaa i got that but was my answer correct ??

Answer 22

no it wasn't.. now try again.. tell me what is the answer?

Answer 23

\[0.83\times10^{-8}\]

Answer 24

??

Answer 25

nope..

next step is you write it as
\[10 ^{-13-13+21-5}\]
lets only talk about 10 powers.. forget about the numbers ok..

SO now tell.. whats the ten power gonna be?

Answer 26

its 10 TO THe PowER -8 again d same thing

Answer 27

-13-13+21-5
= -26+21-5

try again ? :P..

Answer 28

omg i thought thats 12 instead of 13

Answer 29

:P :P

Answer 30

ok so now whats the answer?

Answer 31

its 10 to the power -10

Answer 32

thats it..

so now comes a bonus question for you

\[\frac{3 \times 10^{-23} \times -4 \times 10^{21} }{8 \times 10^{-42} \times 6 \times 10^{14}}\] ............ 2 points..2 tries..

give me complete answer.. ready? go!

Answer 33

-1/4 times 10 to the power 26

Answer 34

Bullseye! Congratz! :)

Answer 35

correct ?

Answer 36

yuhu!! :P

Answer 37

yea.. u got that right.. u passed my crash course :P..