2log105 + log108 - (1/2)log104 = কত?
Solution
Correct Answer: Option A
2log105 + log108 - (1/2)log104
=log1052 + log108 - (1/2)log10(22)
=log1025 + log108 - log10(22)1/2
=log1025 + log108 - log102
=log10{(25 × 8)/2}
=log10100
=log10102
=2log1010
=2 . 1
= 2
=log1052 + log108 - (1/2)log10(22)
=log1025 + log108 - log10(22)1/2
=log1025 + log108 - log102
=log10{(25 × 8)/2}
=log10100
=log10102
=2log1010
=2 . 1
= 2
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