
Grade 10General Physics
ex = 1+ x/1! + x2/2! + x3/3!................ where x
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RPlzzzzzzzzzz tell me how it can be proved.
First tell me a simple way to tackle the proof of this exponential function. 


In viewing through a magnifying glass, one usually positions one's eyes very close to the lens. Does angular magnification change if the eye is moved back?
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