trigonometry short trick(period of functions)

[@madhuridivakar3706]

Excellent sir

[@ताबिशखान-ड1ख]

Good

[@AftabSir786]

Thank

[@AryanshPatel-wd9vw]

Very nice

[@AftabSir786]

Thank

[@sabanaaz6135]

Nice sir

[@AftabSir786]

Thank

[@tahirraza4897]

Good

[@AftabSir786]

Thank