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If (6x+ky=30) and (18x+15y=90) are coincident lines, what is the value of (k)?यदि (6x+ky=30) और (18x+15y=90) संपाती रेखाएं हों, तो (k) का मान क्या है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (5)(5)
The second equation is (3) times the first, so (3k=15) and (k=5). In coincident lines, all terms are in the same ratio.दूसरा समीकरण पहले का (3) गुना है, इसलिए (3k=15) और (k=5)। संपाती रेखाओं में सभी पद समान अनुपात में होते हैं।
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