Question

hy gyz give some question about real problem in which trignometry is used

Answer 1

depends on what kind of trig you mean
if you want to model anything that is periodic, like sound waves, electrical current, phases of the moon, tides, hours of daylight etc you need trigonometric functions
for right triangle trig, it is useful for computing distances, which is how it started to begin with

Answer 2

http://openstudy.com/study#/updates/5066af44e4b0e3061a1cf089

Answer 3

gyz i want trignometry question on like burj khalifa the tallest building,effile tower or pisa tower plz i have to submit question by tmr