Gujarat BoardEnglish MediumSTD 11 CommerceStatisticsGeometric progression1 Mark
Question
State whether the statement "if $a, b, c, d$ are in $G.P$., then $a d=b c$ " is true or false.
✓
Answer
$a, b, c, d$ are in $G.P.$
$\therefore \frac{ b }{ a }=\frac{ c }{ b }=\frac{ d }{ c } \therefore \frac{ b }{ a }=\frac{ d }{ c } \therefore ad = bc$ is true.
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