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What are the calculator tricks every CA student should know?

Open uri20170510 32134 ughyv5?1494421703 asked

What are the calculator tricks every CA student should know?,please help me need an expert advice.

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5 Answers
Avatar 37a3bd7bc7328f0ead2c0f6f635dddf60615e676e6b4ddf964144012e529de45 answered

Type 'x' on your calculator Hit the 'square root' button 12 times Subtract '1' from the result of Step #2 above Multiply result of Step #3 above with 'n' Add '1' to the result of Step #4 Hit the 'multiplication' button followed by the 'equal to' button for 12 times (So, you will hit 'multiply, equal to, multiply, equal to, multiply, equal to...' such that you have done it 12 times) Your result of Step #6 will be very close to the value of x^n.

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Avatar 37a3bd7bc7328f0ead2c0f6f635dddf60615e676e6b4ddf964144012e529de45 answered

Dear Friend, Sometimes, we are faced with an ordinary number with extra-ordinary power. Like 5^0.822 Sometimes, we are faced with evil roots like cube root or fourth route. And in the exam, we do not know how to deal with it. We may not remember how to use logarithms. The given logarithm values in the question make no sense. Time is not enough to recollect all the rules of logarithm. Total confusion. What can we do? In times of utter desperation (and only in such times), you could calculate the value of x^n on your calculator by doing the following steps: Type 'x' on your calculator Hit the 'square root' button 12 times Subtract '1' from the result of Step #2 above Multiply result of Step #3 above with 'n' Add '1' to the result of Step #4 Hit the 'multiplication' button followed by the 'equal to' button for 12 times (So, you will hit 'multiply, equal to, multiply, equal to, multiply, equal to...' such that you have done it 12 times) Your result of Step #6 will be very close to the value of x^n. This can be done for doing roots too. For example, if you want to find the cube root of a number, you will do the exact same steps while taking the value of 'n' to be 0.3333333.... since cube root of 'x' is essentially x^(1/3) or x^(0.333..) As far as I know, this works on Casio and Citizen, both. ICAI does not encourage this. Hence, as stated earlier, do it only in case of utter desperation where you will find that it is better to do this than to leave a question unanswered.

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Avatar 37a3bd7bc7328f0ead2c0f6f635dddf60615e676e6b4ddf964144012e529de45 answered

/How do i find out n in 4 ^ n = 256 on a non scientific calculator ? ans. let me give you interesting technique to solve it Press the following keys on your calculator : 4 x =, ( Count 2 in your mind ) , = ( Count 3) , = ( Count 4) gives 256 . Thus 4 raised to the power 4 is 256. hope this wil be useful for you..

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Avatar 37a3bd7bc7328f0ead2c0f6f635dddf60615e676e6b4ddf964144012e529de45 answered

HI DEAR THERE MANY CALCULATOR TRICKS I WILL SHOW 1 OF THEM **MARK UP FUNCTION** MARK UP FUNCTION (MU)IS USE FOR REVERSE CALCULATIONS IN MAXIMUM SIDE THE **MU** FUNCTION IS ON LEFT SIDE FOR EXAMPLE 400^25%=100 BUT WHEN U WILL ADD 25 % IN 100 THEN U WILL GET 125 NOT 400 BUT WHEN U WILL USE MU FUNCTION U DIRECTLY DO REVERSE CALCULATION SEE HOW IT IS ****100MU25%****=400 ( U WILL GET DIRECTLY 400 ) IT IS VERY USEFUL IN CA Foundation | CA CPT JUST TRY IT :)

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Avatar 37a3bd7bc7328f0ead2c0f6f635dddf60615e676e6b4ddf964144012e529de45 answered

Sometimes, we are faced with an ordinary number with extra-ordinary power. Like 5^0.822 Sometimes, we are faced with evil roots like cube root or fourth route. And in the exam, we do not know how to deal with it. We may not remember how to use logarithms. The given logarithm values in the question make no sense. Time is not enough to recollect all the rules of logarithm. Total confusion. What can we do? In times of utter desperation (and only in such times), you could calculate the value of x^n on your calculator by doing the following steps: 1. Type 'x' on your calculator 2. Hit the 'square root' button 12 times 3. Subtract '1' from the result of Step #2 above 4. Multiply result of Step #3 above with 'n' 5. Add '1' to the result of Step #4 6. Hit the 'multiplication' button followed by the 'equal to' button for 12 times (So, you will hit 'multiply, equal to, multiply, equal to, multiply, equal to...' such that you have done it 12 times) Your result of Step #6 will be very close to the value of x^n. 1. This can be done for doing roots too. For example, if you want to find the cube root of a number, you will do the exact same steps while taking the value of 'n' to be 0.3333333.... since cube root of 'x' is essentially x^(1/3) or x^(0.333..) 2. As far as I know, this works on Casio and Citizen, both. 3. ICAI does not encourage this. Hence, as stated earlier, do it only in case of utter desperation where you will find that it is better to do this than to leave a question unanswered.

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