Home/ Questions/Q 469700
Next
In Process
Dipti Randhawa
Asked: 2022-11-11T16:37:06+05:30 In:

If a, b and c are in H.P., then the value of `((ac+ab-bc)(ab+bc-ac))/(abc)^2` is
A. `((a+c)(3a-c))/(4a^(2)c^(2))`
B. `(2)/(bc)+(1)/(b^(2))`
C. `(2)/(bc)-(1)/(a^(2))`
D. `((a-c)(3a+c))/(4a^(2)c^(2))`

If a, b and c are in H.P., then the value of `((ac+ab-bc)(ab+bc-ac))/(abc)^2` is
A. `((a+c)(3a-c))/(4a^(2)c^(2))`
B. `(2)/(bc)+(1)/(b^(2))`
C. `(2)/(bc)-(1)/(a^(2))`
D. `((a-c)(3a+c))/(4a^(2)c^(2))`
Parabola
Leave an answer

Leave an answer

Browse

1 Answer

  1. Correct Answer – A

    • 0
Nupoor Atul Walla
Asked: 2022-11-06T17:54:19+05:30 In:

If a, b and c are in H.P., then the value of `((ac+ab-bc)(ab+bc-ac))/(abc)^2` is
A. `((a+c)(3a -c))/(4a^2 c^2)`
B. `2/(bc)-1/b^2`
C. `2/(bc)-1/b^2`
D. `((a-c)(3a+c))/(4a^2c^2)`

If a, b and c are in H.P., then the value of `((ac+ab-bc)(ab+bc-ac))/(abc)^2` is
A. `((a+c)(3a -c))/(4a^2 c^2)`
B. `2/(bc)-1/b^2`
C. `2/(bc)-1/b^2`
D. `((a-c)(3a+c))/(4a^2c^2)`
Parabola
Leave an answer

Leave an answer

Browse

1 Answer

  1. Correct Answer – A::B
    `(1/b+1/c-1/a)(1/c+1/a-1b)`
    `=(1/b+1/c-2/b+1/c)(1/c+1/b-1/c)`
    Also by eliminating b, we get the given expression
    `((a+c)(3a-c))/(4a^(2)c^(2))`

    • 0