Question
Question: The value of \(\left( \cos\frac{\pi}{4} + i\sin\frac{\pi}{4} \right)^{6}\) is equal to –...
The value of (cos4π+isin4π)6 is equal to –
A
1
B
– I
C
– 1
D
i
Answer
– I
Explanation
Solution
Sol. = cos 46π Ž cos43π = – i
The value of (cos4π+isin4π)6 is equal to –
1
– I
– 1
i
– I
Sol. = cos 46π Ž cos43π = – i