Question 1f (x) = x+ sin 2x, D, = [0, lt; ]f'(x) =1+2cos 2xfquot; (x) = -4sin 2xLet f'(x) =0=gt; cos2x =-Stationary point value: f-3-3-+ sin33N21 = 4sin quot;n 47 gt; 0, Hence…Math