help me these two questions please
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siddanthprabhu76:
Is AC parallel to BD?
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Answer:
K=1 or 3/2
Step-by-step explanation:
k+1(2k+3-5k)+3k(5k-2k)+5k-1(2k-2k-3)=0
2k²+3k-5k²+2k+3-5k+15k²-6k²-15k+3+3=0
6k²-15k+9=0
2k²-5k+3=0
2k(k-1)-3(k-1)=0
(2k-3)(k-1)=o
∴k=3/2, k=1
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