Question

Let t=4 and u=6+2i. Find t−u.
A. −4i
B. −6+2i
C. 2+2i
D. −2−2i

Answer 1

Explanation:

To find t - u, we subtract the real parts and the imaginary parts separately.

Real part:

t - u = 4 - (6) = -2

Imaginary part:

t - u = 0 - (2i) = -2i

Therefore, t - u = -2 - 2i.

Answer : D. −2−2i

Answer 2

D.-2-2i

Explanation:

t-u=4-(6+2i)

Now, distribute the negative sign to each term inside the parentheses:

t-u=4-6-2i

Combine the real numbers:

t-u = -2-2i