Question

xA=3t+9 ; xB =4t2+ t-1 ; xc = 3t3 -4t2+7t-8 ; xD =4sin 45 -6sin 60+7cos 30 -18. Justify the nature of motion of the four particles.

Answer 1

Answer:

in linear factor's of the quadratic equation x2+kx+1=0 has equal roots find the value of k