If at each point of the curve \( y=x^{3}-a x^{2}+x+1 \) the tangent is inclined at an acute angle with the positive direction of the \( x \)-axis then (1) \( a0 \) (2) \( a \leq \sqrt{3} \) (3) \( (-\sqrt{3}a\sqrt{3}) \) (4) \( 2 \leq a \leq 3 \) 📲PW App Link - https://bit.ly/YTAI_PWAP 🌐PW Website - https://www.pw.live