Examine the continuity of

MATHEMATICS · Subjective · CBSE · Mathematics · Continuity and Differentiability · Continuity and Differentiability

Problem

25. Examine the continuity of ff, where ff is defined by f(x)={sin⁡x−cos⁡x, if x≠0−1, if x=0f(x)= \begin{cases}\sin x-\cos x, & \text { if } x \neq 0 \\ -1, & \text { if } x=0\end{cases}

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