Write the conditions
for
the roots the become equal in the
equations ax²+bx+c=0 (a,b,c are real
Answers
Answer:
नवयुवकों में बढ़ती नशे की प्रवृत्ति पर को मित्रो
की बातचीत को संवाद रूप में लिखें।
Step-by-step explanation:
नवयुवकों में बढ़ती नशे की प्रवृत्ति पर को मित्रो
की बातचीत को संवाद रूप में लिखें।
Answer:
The determinant is b^2 - 4ac
Because it determines how many answers.
•If b^2 - 4ac = 0, the square root = 0 which gives 1 answer.
•If b^2 - 4ac > 0, the square root > 0. So + or - square root. (2 answers.)
•If b^2 - 4ac < 0, the square root < 0 (negative). And you can't square a negative number. (0 or infinate answers). (In further advanced maths, you theoretically can get an answer in terms of i, but that's an entire topic by itself).
If it has equal roots, (e.g x=2, x=2), it means there is only one value for x (x=2). This means the determinant: b^2 - 4ac = 0.