The equation x−2x−1=1−2x−1 has:
Option (a)
x(x - 1) - 2 = (x - 1) - 2
x2−x−2=x−1−2
x2−2x+1=0
(x−1)2=0
x = 1.
x = 1 is the only solution but it will make the denominator 0
Hence, there are no roots.
Between any two real roots of the equation ex sin x = 1, the equation ex cos x = - 1 has