Given equation is Y = cos(x)/2+sin(x) \ \

The graph of above function is \ \

\ \

The equation is Y = cos(x)/2+sin(x) has two tangents. \ \

The values of x in range [0 , 2pi] are taken at which pints \ \

Y = cos(x)/2+sin(x) touches X-Axis. \ \

So x = 2.68 , 5.82 \ \