We have a property
Can we easily find the value of
using the above property?
Similarly, we can find the values of
,
,
etc. using the same property.
Remember that we choose values of a and b carefully so that we can minimize the calculation work.
What is the value of
?
(a) 6919
(b) 6289
(c) 6889
(d) 6959
(e) None of the above
Using property,
, we have
Therefore, the answer is (c).
Now lets try three digit number. What is the value of
(A) 42209
(B) 40109
(C) 43209
(D) 41209
(E) None of the above
Using property,
, we have
Hence, the answer is (D).
Now try some problems. Find the value of
,
and
.
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