??-cal1

The equation | z – z1|^2 + | z – z2|^2 = k (where k is a real number) will represent a circle if

(A) k≥1/2 | z1 – z2|^2
(B) k≤1/2 | z1 – z2|^2
(C) k≤1/2 | z1+ z2|^2
(D) k≥1/2 | z1+ z2|^2

[isko dekhke esy laga tha... par pata nhi kyun ni bana [2]]

4 Answers

24
eureka123 ·

are z1 and z2 extremities of diameter??????

21
tapanmast Vora ·

a?

341
Hari Shankar ·

Please check http://www.goiit.com/posts/list/algebra-complex-number-q1-95556.htm#436392

1
skygirl ·

great bhaiya!!

but xam me tin minute itna kuchh kaise sochenge [2] [12]

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