Let a₁, a₂, a₃,....... be a G.P. such that a₁ < 0, a₁ + a₂ = 4 and a₃ + a₄ = 16. If Σ i = 1 ⁹ a i = 4λ, then λ is equal to:

Sequence and Series: JEE Main 2020 Mathematics question

JEE Main 2020 · 7 Jan, Evening shift · Q5256

JEE Main 20207 Jan, Evening shiftMathematicsMediumSequence and Series179× since 2002

Let

{a_1}

{a_2}

{a_3}

,....... be a G.P. such that

{a_1}

< 0,

{a_1}

{a_2}

= 4 and

{a_3}

{a_4}

= 16. If

\sum\limits_{i = 1}^9 {{a_i}} = 4\lambda

, then

\lambda

is equal to:

JEE Main 2020 · 7 Jan, Evening shift · Q5256

JEE Main 20207 Jan, Evening shiftMathematicsMediumSequence and Series179× since 2002

Let

{a_1}

{a_2}

{a_3}

,....... be a G.P. such that

{a_1}

< 0,

{a_1}

{a_2}

= 4 and

{a_3}

{a_4}

= 16. If

\sum\limits_{i = 1}^9 {{a_i}} = 4\lambda

, then

\lambda

is equal to: