प्रारंभिक बीजगणित
Elementary Algebra
Elementary Algebra
Question 17 of 36
Question 17
यदि a² + b² = 25 और ab = 12 है, तो (a + b) का मान क्या होगा?
Explanation
(a+b)² = a²+b²+2ab = 25 + 2(12) = 49. अतः a+b = √49 = 7।
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