How to find identify the correct substitution for x in a given limit.Is double substitution possible for x like one substituion for 
and for x.
and for x.Asked by royalekawasaki | 13th Jul, 2015, 10:11: PM
Expert Answer:
The substitution in a given limit depends on the expression. We use a substitution which will simplify the given expression.
For example, to find
But in the same limit we cant use different substitution for sqrt(x) and (x).
If we can split the limit and write it as lim(x->a) f(x) + g(x) , then for f(x) and g(x) we can use two different substitutions.
Answered by satyajit samal | 14th Jul, 2015, 10:35: AM
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