CBSE Class 10 Answered
pleas solve this poblem
Asked by | 05 Aug, 2008, 12:54: PM
Expert Answer
in the place x2 , the question written as n 2
the question should be ( 1 + m2) x2 + 2mcx + ( c2 - a2)= 0
the 2 roots are equal ( given )
so the condition is b2 - 4ac = 0 ==> b2 == 4ac
(2 mc)2 ==4 ( 1+m2) ( c2 - a2)
4 m2 c 2 ==4[ c2 +m2c2 -a2 - m2a2] ===>c2 = a2 ( 1 + m2)
therefore c2 == a2 ( 1 + m2)
Answered by | 05 Aug, 2008, 05:30: PM
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