show that log 162 by 343 + 200007 by 9 minus log 1 by 7 is equal to lock to
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log 7 (
![\sqrt{?} \sqrt{?}](https://tex.z-dn.net/?f=+%5Csqrt%7B%3F%7D+)
![\sqrt{?} \sqrt{?}](https://tex.z-dn.net/?f=+%5Csqrt%7B%3F%7D+)
sidhu753:
see it in pic
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