.. यदि (x - 2) बहुपद x - 2mx + mx -1 का एक गुणनखण्ड है तो m का मान ज्ञात कीजिए-
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Given : (x - 2) बहुपद x - 2mx + mx - 1 का एक गुणनखण्ड है
To Find : m का मान
Solution :
x - 2 = 0
=> x = 2
x - 2 f(x) का एक गुणनखण्ड है
=> x = 2 का मान f(x) में रखने पर वह 0 के बराबर होगा,
=> f(2) = 0
f(x) = x - 2mx + mx - 1
=> f(2) = 2 - 2*m*2 + m*2 - 1
=> f(2) = 2 - 4m + 2m - 1
=> f(2) = 1 - 2m
f(2) = 0
=> 1 - 2m = 0
=> 2m = 1
=> m = 1/2
m का मान (1/2) होगा
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