Question

$i^{24}+i^{20}=?$

• A. i
• B. 1
• C. 2
• D. -1

Answer 1

Answer:

C. 2

$i^{24}+i^{20}$

$=i^{4\times6}+i^{4\times5}$

$=1+1$

$=2\because{i^{4n}}=1$