MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Quadratic Polynomial

If a, b, and ...

Question

If a, b, and c are nonzero real numbers such that ab = 2 (a + b), bc = 3( b + c) and ca = 4 (c + a) then the value of 5a + 7b + c is :

A

$18$

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

$72$

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

C

$108$

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

$120$

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B
$72$

Suggest Corrections

thumbs-up

2

Similar questions

a, b

c

are non zero real numbers such that

a b = 2 (a + b) b c = 3 (b + c)

c a = 4 (c + a)

then the value of

5 a + 7 b + c

a, b

c

are nonzero real numbers such that

a b = 2 (a + b), b c = 3 (b + c)

c a = 4 (c + a)

then the value of

5 a + 7 b + c

a, b, c

are nonzero real numbers such that

∣ ∣ ∣ ∣ \begin{matrix} b c & c a & a b c a & a b & b c a b & b c & c a \end{matrix} ∣ ∣ ∣ ∣ = 0

Q. If a, b, & c are nonzero real numbers, then

∣ ∣ ∣ ∣ ∣ \begin{matrix} b^{2} c^{2} & b c & b + c c^{2} a^{2} & c a & c + a a^{2} b^{2} & a b & a + b \end{matrix} ∣ ∣ ∣ ∣ ∣

a, b, c

are real numbers such that

\frac{a b}{a + b} = \frac{1}{3}, \frac{b c}{b + c} = \frac{1}{4}

\frac{c a}{c + a} = \frac{1}{5}

, then the value of

\frac{a b c}{a b + b c + c a}

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Introduction

MATHEMATICS

Watch in App

explore_more_icon

Explore more

Quadratic Polynomial

Standard XII Mathematics

Join BYJU'S Learning Program

CrossIcon