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limit x tends to 0 e^(-x 2 /2) – cosx = ? x 3 sinx
answer is 1/12best method for these type of questions is series expansionwhen we use series of ex , sinx , cosx , value of limit will be coefficient of x4 , as x is tending to 0and all other powers will become 0so answer is 1/12 approve if useful
you can solve the given question by using lhospitalvery useful and time saving rather series expansion0/0 form is obtained diffrentiate until you are out of the formfinally put x=0the answer will be 1/12approve if useful
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