If $a,b,c$ are in A.P. and ${a^2},{b^2},{c^2}$ are in H.P., then

${b^2} = \sqrt {\left( {ac/8} \right)} $

JEE MATHEMATICS MCQ: SEQUENCE OF SERIES

1 Easy

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Analyzing +4 | -1

a,b,c

are in A.P. and

{a^2},{b^2},{c^2}

are in H.P., then

View answer and explanation

Correct option: A

a = b = c

Option A (

a = b = c

) is correct because if a, b, c are in AP and a², b², c² are in HP, then the only possibility is that all three are equal.

Practice All Chapter MCQs →

A=\{1,2,3\}, B=\{3,4\}, C=\{4,5,6\}

{A} \cup({B} \cap {C})

A-(B \cap C)

(B \cup C)-A

a,b,c

a,x,b

b,y,c

{x^2},{b^2},{y^2}

P(x)=1-x+x^2-x^3+\ldots+x^{2012}

y

Q(y)=a_0+a_1 y+\ldots+a_{2012} y^{2012}

y=x-2

\sum\limits_{{i=0}}^{2012} a_i

\log \left(\frac{5 c}{a}\right), \log \left(\frac{3 b}{5 c}\right)

\log \left(\frac{a}{3 b}\right)

A P

a, b

G P

a, b, c

\frac{3}{4}