If then the value of is:
Correct Answer :
10
Solution :
The given question asks for the value of the algebraic expression:
when
.
To evaluate this expression efficiently without calculating large powers of 11 directly, we can write the coefficients of the terms in relation to
.
Since
, we can express the number 12 as:
Now, substitute
into the expression:
Next, expand each term inside the expression:
Remove the parentheses:
Notice that most of the terms cancel out:
-
-
-
-
After cancellation, the entire expression simplifies to:
Finally, substitute the value of
:
Therefore, the correct answer is 10.
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