Answer :
The expression which is equivalent to − 2 + 14 (i¹⁵) is; -2-14i.
Equivalent expressions
Upon evaluation it follows that;
- i² = -1
- i³ = -i
- i⁴ = 1
It follows from the above that the expression;
- i¹⁵ = i⁴ × i⁴ × i⁴ × i³
- i¹⁵ = -i
On this note it follows that;
-2 + 14(i¹⁵) = -2-14i
Ultimately, the expression which is equivalent to the given expression is; -2 -14i
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