Can someone please send me the answer of this question?its from CBSE grade 10
spencer hastings , 6 Years ago
Grade 10
Thermal Physics> Can someone please send me the answer of ...
1 Answers
Arun
Last Activity: 6 Years ago
Dear student
x² + kx +64 = 0
Hence D>= 0
k² >= 256
(k-16) (k +16) > = 0
K belongs to ( - infinity , -16) U ( 16, infinity)
Now
x² - 8x + k =0
64> = 4k
k
Hence
On combining both the results
K bemongs to ( - infinity , -16)
Regards
Arun (askIITians forum expert)
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