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Q.Let f(x)={sin⁡x∘xx≠0 kx=0f(x) = \begin{cases} \frac{\sin x^\circ}{x} & x \ne 0 \ k & x = 0 \end{cases}. For continuity at x=0x=0, kk equals

a
π/180\pi/180
b
180/π180/\pi
c
1
d
0

Correct Answer: Option A

The correct solution involves applying the fundamental concept to derive the final value step by step...

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