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If (ax+9y=27) and (4x+3y=9) are coincident lines, what is the value of (a)?यदि (ax+9y=27) और (4x+3y=9) संपाती रेखाएं हैं, तो (a) का मान क्या है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (12)(12)
The first equation must be (3) times the second, so (a=12). In coincident lines, all terms change by the same multiplier.पहला समीकरण दूसरे का (3) गुना होना चाहिए, इसलिए (a=12)। संपाती रेखाओं में सभी पद समान गुणक से बदलते हैं।
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