Update

Muft Shiksha™ एक 100% Free Education Portal है 🇮🇳, जिसका उद्देश्य Class 9–12 के हर विद्यार्थी तक High-Quality Education को पूरी तरह मुफ्त पहुँचाना है। 🇮🇳 हम मानते हैं कि अच्छी शिक्षा किसी student की आर्थिक स्थिति पर निर्भर नहीं होनी चाहिए। 🇮🇳 हर विद्यार्थी को वही Quality Study Material, MCQs, Quizzes, Exam Preparation, Concept-Based Learning और Bilingual Support मिलना चाहिए, जो आमतौर पर महंगी Coaching या Premium Platforms में मिलता है। Muft Shiksha™ 🇮🇳 इसी सोच के साथ बनाया गया है

Subjects
0 reads0 ratings0 helpful

For the function \(f(x)=\operatorname{sgn}(x-5)\), what is the value of \(f(x)\) at \(x=5\)?

Answer and explanation

Correct answer: 0

When \(x=5\), we get \(x-5=0\). By definition of the signum function, \(\operatorname{sgn}(0)=0\); hence, \(f(5)=0\). The value 1 applies when \(x-5>0\), while -1 applies when \(x-5<0\). Exam tip: Always check the zero, positive, and negative cases separately for a signum function.

Related tags

Standard-FunctionsSignum-FunctionGraphs-Of-FunctionsFunction-ValuesGraphs Of Standard FunctionsRelations And FunctionsMathematicsClass 11 Mcq

Was this question useful?

No ratings yetWrite a review / Rate this question

Student Reviews

No published reviews yet.

Add Muft Shiksha to your Home Screen

In Safari, tap Share, then Add to Home Screen.