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Let F (X) = | X | + | X − 1|, Then (A) F (X) is Continuous at X = 0, as Well as at X = 1 (B) F (X) is Continuous at X = 0, but Not at X = 1 (C) F (X) is Continuous at X = 1, but Not at X = 0 (D) None - Mathematics

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प्रश्न

Let f (x) = | x | + | x − 1|, then

विकल्प

  •  f (x) is continuous at x = 0, as well as at x = 1

  • f (x) is continuous at x = 0, but not at x = 1

  • (x) is continuous at x = 1, but not at x = 0

  • none of these

MCQ

उत्तर

f (x) is continuous at x = 0, as well as at x = 1 

Since modulus function is everywhere continuous , 

\[\left| x \right| \text{ and } \left| x - 1 \right|\]  are also everywhere continuous.
Also, 
It is known that if f and g are continuous functions, then g will also be continuous.

Thus, ​ ​

\[\left| x \right| + \left| x - 1 \right|\] is everywhere continuous.

Hence, 

\[f\left( x \right)\]  is continuous at 
\[x = 0 \text{ and } x = 1\]
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अध्याय 9: Continuity - Exercise 9.4 [पृष्ठ ४३]

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आरडी शर्मा Mathematics [English] Class 12
अध्याय 9 Continuity
Exercise 9.4 | Q 12 | पृष्ठ ४३

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