Evaluate the following limits:

As we need to find


We can directly find the limiting value of a function by putting the value of the variable at which the limiting value is asked if it does not take any indeterminate form (0/0 or ∞/∞ or ∞-∞,1 .. etc.)


Let Z =


As it is taking indeterminate form.


we need to take steps to remove this form so that we can get a finite value.


As, Z =


Z =


Taking log both sides-


log Z =


log Z =


{ log am = m log a}


Now it gives us a form that can be reduced to


Dividing numerator and denominator by tan2√x –


log Z =


using algebra of limits –




Let, tan2√x = y


As x0+ y0+


A =


Use the formula -


A = 1


Now, B =


B =


Use the formula -


B = 2


Hence,


log Z =


loge Z = 1/2


Z = e1/2


Hence,



2