1.

Distance between the points ( am1² , 2am1 ) , ( am2² ,2am2 )​

Answer»

ong>Step-by-step explanation:P>

Distance d  between two POINTS P(a,b)  and Q(c,d) is GIVEN by

d=(a−c)2+(b−d)2

Given that :

P(am12,2am1)

Q(am22,2am2)

Now APPLYING the the formula 

d=(am12−am22)2+(2am1−2am2)2

d=a(m12−m22)2+(2m1−2m2)2

d=a[(m1+m2)(m1−m2)]2+4(m1−m2)

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