Question
The curves $x^{2}-4 y^{2}+c=0$ and $y^{2}=4 x$ will cut orthogonally for(A) $c \in(0,16)$(B) $c \in(-3,4)$(C) $c \in(3,4)$(D) None of these
Step 1
The condition for the curves to intersect orthogonally is that the product of their slopes should be -1. Show more…
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