Let …, …, ….....be terms on A.P. If … equals

Sequences and Series

JEE Main 2006 · Annual, Paper 1 · Q5191

MathematicsMedium178×since 2002Q5191

Let

{a_1}

{a_2}

{a_3}

.....be terms on A.P. If

{{{a_1} + {a_2} + .....{a_p}} \over {{a_1} + {a_2} + .....{a_q}}} = {{{p^2}} \over {{q^2}}},\,p \ne q,\,then\,{{{a_6}} \over {{a_{21}}}}\,

equals

JEE Main 2006 · Annual, Paper 1 · Q5191

MathematicsMedium178×since 2002Q5191

Let

{a_1}

{a_2}

{a_3}

.....be terms on A.P. If

{{{a_1} + {a_2} + .....{a_p}} \over {{a_1} + {a_2} + .....{a_q}}} = {{{p^2}} \over {{q^2}}},\,p \ne q,\,then\,{{{a_6}} \over {{a_{21}}}}\,

equals