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

What is the range of the function \\(f(x)=\\frac{1}{\\sqrt{x^2+6x+10}}\\)?

Answer and explanation

Correct answer: \\((0,1]\\)

The expression inside the square root is \(x^2+6x+10=(x+3)^2+1\), whose minimum value is 1. Hence \(\sqrt{x^2+6x+10}\ge 1\), so \(0<f(x)\le 1\). The value 1 is attained at x=-3, but f(x) can never be 0; therefore, the range is \((0,1]\). Exam tip: For reciprocal square-root functions, first find the minimum value of the expression under the radical.

Related tags

Relations-FunctionsRangeReal-Valued-FunctionsDomain-RangeQuadratic-ExpressionReal Valued FunctionsTheir Domain And RangeReal Valued Functions Their Domain And RangeRelations And Functions

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.