यदि समीकरण 3x² + 5x - 7 = 0 के मूल्य a तथा b हो तो (1/a + 1/b) =? - - Yadi Samikaran 3x& # 178 ; + 5x - 7 = 0 Ke Moolya A Tatha B Ho To (1/A + 1/B) = ? Maths in hindi, quadratic equations 5/11 question answers in hindi pdf 5/7 questions in hindi, Know About 3/7 Maths online test Maths notes in hindi quiz book Inme Se Koi नही