The equations ax +b = 0 and cx + d = 0 are consistant if
(A) ad = bc (B) ad + bc = 0 (C) ab –cd = 0 (D) ab + cd = 0
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Step-by-step explanation:
The equations ax +b = 0 and cx + d = 0 are consistant if a/c = b/d
=> ad = bc (option A)
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