Q. 244.5( 2 Votes )

# 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 ∞-∞, .. etc.)

Let Z =

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

TIP: Most of the problems of logarithmic and exponential limits are solved using the formula and

This question is a direct application of limits formula of exponential and logarithmic limits.

As Z =

Z =

{Adding and subtracting 1 in numerator}

Z =

{using algebra of limits}

Use the formula:

Z = log 8 – log 2 =

{using properties of log}

Hence,

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