How to calculate X^n using normal calculator

Final 156837 views 22 replies

 

 Useful for SFM MAFA and other subjects

Hey Friends ever wondered how to find out the answer for xn (base "x" to the power of "n")

For e.g. did crack down your head to know the answer for something like this

2.718280.06 (xn) using a calculator allowed in the CA/CWA/CS examination hall

Let me tell you the way out

 

 

Step i) put down the base (2.71828) in your calculator and now press the √ (Square root) key 12 times.

(in our e.g. you will get 1.00024417026)

Step ii) now subtract 1 from the number as per step (ii).

(In our example 1.00024417026 -1=0.00024417026)

 

Step iii) now multiply the number as per step (ii) with the power 'n'(in our e.g. 0.06)

 

(0.00024417026 X 0.06 = 0.00001465021)

 

Step iv) now add back one to the number as per step (iii).

(0.00001465021+1=1.00001465021)

 

Step v) now the final step press "X=" keys('Multiplication' and 'Equal To' keys one after the other) 12 times and that’s the answer.

 

(1.00001465021 X= X= X= X= X= X= X= X= X= X= X= X=  you will get 1.06184 and that's the answer)

 

Practice it a few times and thats it; it is surely gonna save some of your time in the examination hall (that is wasted in searching for the answer in tables)

   

For any clarification pls post down your query...  

Replies (22)

thank for providing this method

but que. is why r u using 12 time .hw is it  come.

U could do it using 10, 11, 13, 14 or so........times also bt 12 gives an approximately correct answer.

good job. thanks

Originally posted by : Kandarp Dudhoria
 
 Useful for SFM MAFA and other subjects
Hey Friends ever wondered how to find out the answer for xn (base "x" to the power of "n")
For e.g. did crack down your head to know the answer for something like this
2.718280.06 (xn) using a calculator allowed in the CA/CWA/CS examination hall
Let me tell you the way out
 
 
Step i) put down the base (2.71828) in your calculator and now press the √ (Square root) key 12 times.
(in our e.g. you will get 1.00024417026)
Step ii) now subtract 1 from the number as per step (ii).
(In our example 1.00024417026 -1=0.00024417026)
 
Step iii) now multiply the number as per step (ii) with the power 'n'(in our e.g. 0.06)
 
(0.00024417026 X 0.06 = 0.00001465021)
 
Step iv) now add back one to the number as per step (iii).
(0.00001465021+1=1.00001465021)
 
Step v) now the final step press "X=" keys('Multiplication' and 'Equal To' keys one after the other) 12 times and that’s the answer.
 
(1.00001465021 X= X= X= X= X= X= X= X= X= X= X= X=  you will get 1.06184 and that's the answer)
 
Practice it a few times and thats it; it is surely gonna save some of your time in the examination hall (that is wasted in searching for the answer in tables)
   
For any clarification pls post down your query...  

thats really a good short trick of solving questions......

How to calcuate Z value, using Normal Calculator, use in CA Exams.

Urgent. Need & Seeking Ur Cooperations Friends...
Thanking You.


(Ashok kumar)

ooo....always wondered about that...thanks man :)

Thanks a lot Kandarp..... It is really useful......

how to solve 4√0.4906 in normal calculator .?

can anyone help me

 

 

Thank you so much for helping students with this short cut.

I love this shortcut

Use power as 1/4. all other processes are same as above.

Very easy method . Thxs
Thanks Kandarp! Thanks for providing the trick.
What if the power is negative X^-n


CCI Pro

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