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rupsk
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The harmonic mean of the roots the equation is
(5+sqrt 2)x*x - (4 + sqrt 5)x + (8+2 * sqrt 5)=0
A. 6
B. 8
C. 2
D. 4
E. 5
sol: hm= 2* product of root/ sum of root
product of root = (8+2 * sqrt 5)/(5+sqrt 2)
sum of root =(4 + sqrt 5) /(5+sqrt 2)
hm = 2*2 =4
but my answer is incorrect, please correct me where i did wrong.
(5+sqrt 2)x*x - (4 + sqrt 5)x + (8+2 * sqrt 5)=0
A. 6
B. 8
C. 2
D. 4
E. 5
sol: hm= 2* product of root/ sum of root
product of root = (8+2 * sqrt 5)/(5+sqrt 2)
sum of root =(4 + sqrt 5) /(5+sqrt 2)
hm = 2*2 =4
but my answer is incorrect, please correct me where i did wrong.
