a) b – a = c – d
b) a + b = c + d
c) a – b = c – d
d) a – b = c + d
If the curves x2/a + y2/b = 1 and x2/c + y2/d = 1 intersect at right angles, then which one is the correct relation?
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answerhappygod
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If the curves x2/a + y2/b = 1 and x2/c + y2/d = 1 intersect at right angles, then which one is the correct relation?
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