Theory of Equations 1 Question 39

40. If the products of the roots of the equation x23kx+2e2logk1=0 is 7 , then the roots are real for k=.

(1984, 2M)

Show Answer

Solution:

  1. Since, x23kx+2e2logk1=0 has product of roots 7 .

2e2logk1=7e2logek=4k2=4

k=2 [neglecting 2]



जेईई के लिए मॉक टेस्ट

एनसीईआरटी अध्याय वीडियो समाधान

दोहरा फलक