Q. Which of the following is equivalent to the complex number i16 ?Choose 1 answer:(A) 1(B) i(C) −1(D) −i
Understanding powers of i: To solve for i16, we need to remember the powers of i. The powers of i cycle in a pattern: i, −1, −i, 1, and then repeat. This is because i2=−1, i3=i2⋅i=−i, and i4=(i2)2=1.
Finding the position of i16: Since the powers of i repeat every 4th power, we can divide the exponent by 4 to find where i16 lands in the cycle. 16 divided by 4 is 4, which means i16 is (i4)4.
Simplifying (i4)4: We know that i4=1. Therefore, (i4)4=14.
Calculating 14: Calculating 14, we get 1, because any non-zero number to the power of 4 is itself.
Final result: i16=1: So, i16 is equivalent to 1.
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