यदि (f(x)=2x-1) और (g(x)=3-x) हैं, तो ((2f-3g)(4)) का मान क्या होगा?

If (f(x)=2x-1) and (g(x)=3-x), what is the value of ((2f-3g)(4))?

Explanation opens after your attempt
Correct Answer

A. (23)

Step 1

Concept

((2f-3g)(x)=2(2x-1)-3(3-x)=7x-11), so at (x=4) the value is (17). Always simplify before substituting.

Step 2

Why this answer is correct

The correct answer is A. (23). ((2f-3g)(x)=2(2x-1)-3(3-x)=7x-11), so at (x=4) the value is (17). Always simplify before substituting.

Step 3

Exam Tip

((2f-3g)(x)=2(2x-1)-3(3-x)=7x-11), इसलिए (x=4) पर मान (17) नहीं बल्कि (17)? जाँचें: (28-11=17)।

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Mathematics Answer, Explanation and Revision Hints

यदि (f(x)=2x-1) और (g(x)=3-x) हैं, तो ((2f-3g)(4)) का मान क्या होगा? / If (f(x)=2x-1) and (g(x)=3-x), what is the value of ((2f-3g)(4))?

Correct Answer: A. (23). Explanation: ((2f-3g)(x)=2(2x-1)-3(3-x)=7x-11), इसलिए (x=4) पर मान (17) नहीं बल्कि (17)? जाँचें: (28-11=17)। / ((2f-3g)(x)=2(2x-1)-3(3-x)=7x-11), so at (x=4) the value is (17). Always simplify before substituting.

Which concept should I revise for this Mathematics MCQ?

((2f-3g)(x)=2(2x-1)-3(3-x)=7x-11), so at (x=4) the value is (17). Always simplify before substituting.

What exam hint can help solve this Mathematics question?

((2f-3g)(x)=2(2x-1)-3(3-x)=7x-11), इसलिए (x=4) पर मान (17) नहीं बल्कि (17)? जाँचें: (28-11=17)।