0 reads0 ratings0 helpful
If (f:\mathbb{R}\to\mathbb{R}), (f(x)=x^2-4x+7), why is (f) not one-one?यदि (f:\mathbb{R}\to\mathbb{R}), (f(x)=x^2-4x+7), तो (f) एकैकी क्यों नहीं है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: Because (f(1)=f(3))क्योंकि (f(1)=f(3))
Step 1: A quadratic function can give equal outputs for two different inputs due to symmetry. Step 2: (f(1)=4) and (f(3)=4), while (1\ne 3). Step 3: Completing the square or substituting two values can quickly disprove one-one.चरण 1: द्विघात फलन में सममिति के कारण दो अलग आगत समान निर्गत दे सकते हैं। चरण 2: (f(1)=4) और (f(3)=4), जबकि (1\ne 3)। चरण 3: वर्ग पूर्ण करके या दो मान रखकर एकैकी न होना जल्दी दिखाया जा सकता है।
Student feedback
Was this question useful?
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Difficulty
Easy0%
Medium0%
Hard0%
Was the explanation clear?
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.
