Cos 7 X + Cos 5 X + Cos 3 X + Cos X = 4cosx cos2x cos4x
Sin(x-y)cosx-cos(x-y)sinx=-siny. prove
hideep
Asked:
December 2022
in Kalpana,s School one person will contact four people and each of those people will contact four other people and so on how many people will be contacted in V around