Q121 of 865 Page 19 Evaluate Answer Put tan-1x=t,dx/(1+x2)=dt, 1+x2=sec2x; 1 Save 1 Copy link WhatsApp X / Twitter Telegram Report Get AI explanation AI is thinking… Couldn't generate an explanation. Try again AI Explanation Beta Generated by AI. May contain inaccuracies — always verify with your textbook.