HOW TO CHECK THE CALCULATOR WHETHER IT IS ORIGINAL OR NOT?

It is easy to check whether the calculator is original or not...
to do that you must have a scientific calculator like the below mentioned
calculator.
This method is useful only to check the scientific calculator
it is not mentioned for the other local calculators.
Scientific calculators are mostly used by engineering students and so
many important areas.
Before doing this you must swith off the calculator.

After that PRESS ON + SHIFT + 7 at the same time.
You should not press seperately other wise the output will not
be the same.

When you press the above keys you will obtain 88888888888*10 power -8
or a fully covered black coatings will be obtained.

Go and check.

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