MCQ
$log_{10} tan1^0 + log_{10} tan3^0 + .... + log_{10} tan 89^0$ નું મૂલ્ય ..........
- A$45 (log_{10} tan1^0)$
- B$45 (log_{10} tan89^0)$
- C$1$
- ✓$0$
અહી, $log_{10} tan1^0 + log_{10} tan3^0 + .... + log_{10} tan 89^0$
$= log_{10} (tan1^0 tan3^0 tan5^0 ..... tan89^0)$
$= log_{10} [(tan1^0 tan89^0) (tan3^0 tan87^0) ....... (tan45^0)]$
$= log_{10} (1 \cdot 1...... 1)$
$= log_{10}1 $
$= 0$
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$(i) (fog) (x) =$ .............. અને $(ii)(gof) (x)=$ .................
$($ જ્યાં $n \in Z)$