prashne hariyatama pahadili nedda manda.
meke ithin agayan adesha kara kara dapan.
wt katha one ne ban umbe wedeta A sin (θ + k) widiyata ganin (eka lesi, wt kathawa liyanna kammali mata :P )
A kiyanne sin wave eke amplitude eka (wistharaya - neththam saralawa kiwwoth usa :P)
k kiyanne...