Question

Let f (x) = $\lim_{x \rightarrow 0}$ If f (x) is continuous at x = 0 then k =

• A. $\left( \cos\frac{\alpha}{r^{2}} + i\sin\frac{\alpha}{r^{2}} \right)$
• B. $\left( \cos\frac{2\alpha}{r^{2}} + i\sin\frac{2\alpha}{r^{2}} \right)$
• C. 1
• D. 0

Answer 1

Answer: (A)

$\left( \cos\frac{\alpha}{r^{2}} + i\sin\frac{\alpha}{r^{2}} \right)$

Answer 2

Q f(0) = f(0⁺) k = $\lim _ { h \rightarrow 0 }$ ⇒ k = π/5