यदि \(Q={x:x\in \mathbb{Z},,x^2-4x+3=0}\), तो (Q) का सूची रूप क्या है?
If \(Q={x:x\in \mathbb{Z},,x^2-4x+3=0}\), what is the roster form of (Q)?
Explanation opens after your attempt
A. \(Q=\{1,3\}\)
Concept
(x-2-4x+3=(x-1)(x-3)).
Why this answer is correct
Thus (x=1) or (x=3), and both are integers.
Exam Tip
Solve the equation first, then write the roster form. चरण 1: (x-2-4x+3=(x-1)(x-3)) है। चरण 2: अतः (x=1) या (x=3), दोनों पूर्णांक हैं। चरण 3: समीकरण हल करने के बाद ही सूची रूप लिखें।
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