यदि (f(x)=x+2) और (g(x)=x-2) हों, तो ((f+g)(x)\cdot(f-g)(x)) क्या होगा?
If (f(x)=x+2) and (g(x)=x-2), what is ((f+g)(x)\cdot(f-g)(x))?
Explanation opens after your attempt
A. (8x)
Concept
((f+g)(x)=2x) and ((f-g)(x)=4), so the product is (8x). Solve combined expressions step by step.
Why this answer is correct
The correct answer is A. (8x). ((f+g)(x)=2x) and ((f-g)(x)=4), so the product is (8x). Solve combined expressions step by step.
Exam Tip
((f+g)(x)=2x) और ((f-g)(x)=4), इसलिए गुणनफल (8x) है। संयुक्त अभिव्यक्ति को चरणों में हल करें।
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