trend line kau se karna bahut zaruri hota hai technical studies me..me last 3 saal se inko use kar rahah on aur maine notice kiya hai ki ye bahut accurate hoti hai aur inpe poora bharosa kiya ja sakta ai..trend line se related bahut se patterns hote hai charts me jinhe samjhna aur unke hisab se trading karna bahut faydemand hota hai