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

If (f:[0,\infty)\to\mathbb{R}) is given by (f(x)=x^2+2x), which statement about its range and one-one behaviour is correct?

Answer and explanation

Correct answer: Range is ([0,\infty)) and it is one-one

Step 1: (x^2+2x=x(x+2)), and for (x\geq0) it starts at (0) and increases. Step 2: The minimum value is (0) at (x=0), so the range is ([0,\infty)). Step 3: A quadratic can become one-one after restricting its domain.

Related tags

Domain RestrictionRangeOne-OneFunctionsRelations And FunctionsMathematicsClass 12 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.