log x7. log 7* x=??
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0
Answer:
- log
- x
- (x+7)<0
- forx>1
- log
- x
- (x+7)<0
- ⇒α
- x+7
- <1
- ⇒nosolution
- for0<x<1
- log
- x
- (x+7)<0
- x+7>1
- x>−6
- ⇒x∈(0,1)
- Hence,
- OptionA is correct answer.
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