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 \(f(x)=2x+3\), \(g(x)=x-4\), and \(h(x)=x^2\), what is the value of \((f+g-h)(x)\)?

Answer and explanation

Correct answer: -x^2+3x-1

By the definition of addition and subtraction of functions, \((f+g-h)(x)=f(x)+g(x)-h(x)\). Therefore, \((2x+3)+(x-4)-x^2=-x^2+3x-1\), so option A is correct. In option B, the sign of the \(x^2\) term is incorrect because \(h(x)\) is being subtracted. Exam tip: write the complete expressions in brackets before combining like terms.

Related tags

Relations And FunctionsFunction OperationsAlgebra Of Real FunctionsLinear CombinationMathematicsClass 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.