(\(\sqrt{31}+\sqrt{12}\)\(\sqrt{31}-\sqrt{12}\)) का मान क्या है?
What is the value of (\(\sqrt{31}+\sqrt{12}\)\(\sqrt{31}-\sqrt{12}\))?
Explanation opens after your attempt
B. (19)
Concept
This is conjugate multiplication, so the value is (31-12=19). Identify the \(a^2-b^2\) form.
Why this answer is correct
The correct answer is B. (19). This is conjugate multiplication, so the value is (31-12=19). Identify the \(a^2-b^2\) form.
Exam Tip
यह संयुग्मी गुणन है इसलिए मान (31-12=19) है। \(a^2-b^2\) रूप पहचानें।
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