\[\underset{x\to a}{\mathop{\lim }}\,\frac{\cos x-\cos a}{\cos x-\cot a}=\] [BIT Ranchi 1987]

\[\text{cose}{{\text{c}}^{3}}a\]

\[\frac{1}{2}\text{cose}{{\text{c}}^{2}}a\]

\[\underset{x\to a}{\mathop{\lim }}\,\frac{\cos x-\cos a}{\cos x-\cot

1.	\[\underset{x\to a}{\mathop{\lim }}\,\frac{\cos x-\cos a}{\cos x-\cot a}=\] [BIT Ranchi 1987]
A.	\[\frac{1}{2}{{\sin }^{3}}a\]
B.	\[\frac{1}{2}\text{cose}{{\text{c}}^{2}}a\]
C.	\[{{\sin }^{3}}a\]
D.	\[\text{cose}{{\text{c}}^{3}}a\]
Answer» D. \[\text{cose}{{\text{c}}^{3}}a\]

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\[\underset{x\to a}{\mathop{\lim }}\,\frac{\cos x-\cos a}{\cos x-\cot a}=\] [BIT Ranchi 1987]

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