\(\frac{1}{4-\sqrt{15}}+\frac{1}{4+\sqrt{15}}\) का मान क्या है?
What is the value of \(\frac{1}{4-\sqrt{15}}+\frac{1}{4+\sqrt{15}}\)?
Explanation opens after your attempt
Correct Answer
A. (8)
Concept
The product of the denominators is (16-15=1), and the numerator becomes (8). In exams, adding conjugate denominators together is a fast method.
Why this answer is correct
The correct answer is A. (8). The product of the denominators is (16-15=1), and the numerator becomes (8). In exams, adding conjugate denominators together is a fast method.
Exam Tip
हरों का गुणनफल (16-15=1) है और अंश (8) बनता है। परीक्षा में संयुग्म हरों को साथ जोड़ना तेज तरीका है।
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