100 Things Redskins Fans Should Know & Do Before They Die (100 Things...Fans Should Know)

100 Things Redskins Fans Should Know & Do Before They Die (100 Things...Fans Should Know)

Matematika cos 30°.cos 60°-sin 30°.sin 60°

TOLONG BANTU JAWAB PAKE CARA , TERIMA KASIH.​

cos 30°.cos 60°-sin 30°.sin 60°

TOLONG BANTU JAWAB PAKE CARA , TERIMA KASIH.​

Jawab:

( Cos 30° . Cos 60° ) - ( Sin 30° . Sin 60° ) ??

( 1/2√3 . 1/2 ) - ( 1/2 . 1/2√3 ) = 0

Terimakasih

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