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Class 12 Mathematics Trigonometric Functions Trigonometric functions and their propertiesEasyLevel 72

Where is (\sec x) undefined?

Answer and explanation

Correct answer: (\cos x=0)

(\sec x=\frac{1}{\cos x}), so it is undefined when (\cos x=0). In reciprocal functions, the denominator cannot be zero.

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domainsecantundefined

Frequently asked questions

What is the correct answer to this question?

(\cos x=0)

Why is this the correct answer?

(\sec x=\frac{1}{\cos x}), so it is undefined when (\cos x=0). In reciprocal functions, the denominator cannot be zero.

Which subject and chapter does this question cover?

This is a Class 12 Mathematics question. Chapter: Trigonometric Functions. Topic: Trigonometric functions and their properties.

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