exam ma to hum "finger trick" yaad rakhe chhe! right hand ni five fingers mathi 0, 30, 45, 60, 90 assign karo, ane √0/2, √1/2, √2/2, √3/2, √4/2 ni pattern follow karo — sin anu cos opposite thi ave. maari class na baccho ne aaj sudhi aaj samjavato hato!
par ek vaat: sir ne to ratvanu kehvu hoy, pan majha bhaio stationery shop ma rehene vala che, ane jyare laptop na hoy, to khali pen-paper par ghani vaar khali diagram kari kari practice kari ne yaad rahe.
#exams#study
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