यदि (f(x)=x-2-16) और (g(x)=x+4) हैं, तो \(x \neq -4\) के लिए (\left\(\frac{f}{g}\right\)(-1)) का मान क्या है?

If (f(x)=x-2-16) and (g(x)=x+4), what is (\left\(\frac{f}{g}\right\)(-1)) for \(x \neq -4\)?

Explanation opens after your attempt
Correct Answer

A. (3)

Step 1

Concept

(\left\(\frac{f}{g}\right\)(x)=\frac{(x-4)(x+4)}{x+4}=x-4), so at (x=-1) the value is (-5). Check directly as \(\frac{-15}{3}=-5\).

Step 2

Why this answer is correct

The correct answer is A. (3). (\left\(\frac{f}{g}\right\)(x)=\frac{(x-4)(x+4)}{x+4}=x-4), so at (x=-1) the value is (-5). Check directly as \(\frac{-15}{3}=-5\).

Step 3

Exam Tip

(\left\(\frac{f}{g}\right\)(x)=\frac{(x-4)(x+4)}{x+4}=x-4), इसलिए (x=-1) पर मान (-5) होना चाहिए; पर सही जाँच में \(\frac{-15}{3}=-5\)।

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Mathematics Answer, Explanation and Revision Hints

यदि (f(x)=x-2-16) और (g(x)=x+4) हैं, तो \(x \neq -4\) के लिए (\left\(\frac{f}{g}\right\)(-1)) का मान क्या है? / If (f(x)=x-2-16) and (g(x)=x+4), what is (\left\(\frac{f}{g}\right\)(-1)) for \(x \neq -4\)?

Correct Answer: A. (3). Explanation: (\left\(\frac{f}{g}\right\)(x)=\frac{(x-4)(x+4)}{x+4}=x-4), इसलिए (x=-1) पर मान (-5) होना चाहिए; पर सही जाँच में \(\frac{-15}{3}=-5\)। / (\left\(\frac{f}{g}\right\)(x)=\frac{(x-4)(x+4)}{x+4}=x-4), so at (x=-1) the value is (-5). Check directly as \(\frac{-15}{3}=-5\).

Which concept should I revise for this Mathematics MCQ?

(\left\(\frac{f}{g}\right\)(x)=\frac{(x-4)(x+4)}{x+4}=x-4), so at (x=-1) the value is (-5). Check directly as \(\frac{-15}{3}=-5\).

What exam hint can help solve this Mathematics question?

(\left\(\frac{f}{g}\right\)(x)=\frac{(x-4)(x+4)}{x+4}=x-4), इसलिए (x=-1) पर मान (-5) होना चाहिए; पर सही जाँच में \(\frac{-15}{3}=-5\)।