where k≠0, find the range of the values of k.
Answer: k<-1
Q2) If kx^2-x+k>0 for all real values of x,
where k≠0, find the range of the values of k.
Answer: k>1/2
How to find out the answer?
Please explain thoroughly!!
Thank you!
更新1:
點解圖形與x軸不相交既??