यदि (p(x)=ax-2+4x-12) और (x=2) इसका शून्य है, तो (a) क्या होगा?
If (p(x)=ax-2+4x-12) and (x=2) is its zero, what is (a)?
Explanation opens after your attempt
A. (1)
Concept
(p(2)=4a+8-12=0), so (4a=4) and (a=1). When a zero is given, set the polynomial value equal to (0).
Why this answer is correct
The correct answer is A. (1). (p(2)=4a+8-12=0), so (4a=4) and (a=1). When a zero is given, set the polynomial value equal to (0).
Exam Tip
(p(2)=4a+8-12=0), इसलिए (4a=4) और (a=1)। शून्य दिए होने पर बहुपद का मान (0) रखें।
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