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If (-4,5) is one verted and 7x-y+8=0 is ...

If (-4,5) is one verted and `7x-y+8=0` is one diagonal of a square, then the equation of the second diagonal is

A

only I is true

B

only II is true

C

both I and II are true

D

neither I nor II are true

Text Solution

Verified by Experts

The correct Answer is:
C
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