Question
Download Solution PDFसरल कीजिए: \(\frac{(76+84)^2-(76-84)^2}{76 \times 84}\) = ?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFदिया गया है:
\(\dfrac{(76+84)^2-(76-84)^2}{76 \times 84}\)
प्रयुक्त सूत्र:
(a + b)2 - (a - b)2 = 4ab
गणना:
(a + b)2 - (a - b)2
⇒ a2 + b2 + 2ab - {a2 + b2 - 2ab}
⇒ 2ab + 2ab = 4ab
अब, \(\dfrac{(76+84)^2-(76-84)^2}{76 \times 84}\)
⇒ \(\dfrac{4 × 76 × 84}{76 × 84}\) = 4
∴ सही उत्तर 4 है।
Last updated on Jul 15, 2025
-> The UPSSSC PET Exam Date 2025 has been released which will be conducted on September 6, 2025 and September 7, 2025 in 2 shifts.
-> The PET Eligibility is 10th Pass. Candidates who are 10th passed from a recognized board can apply for the vacancy.
->Candidates can refer UPSSSC PET Syllabus 2025 here to prepare thoroughly for the examination.
->Candidates who want to prepare well for the examination can solve PET Previous Year Paper.