sin cos tan คืออะไร

sin A cos A tan A sin A cos A tan A 0 26 1

ผลบวก – ผลต่างของมุม sin = sin A cos B + cos A sin B sin = sin A cos B - cos A sin B cos = cos A cos B

cos sin Ex , 2 Differentiate the functions with respect to x cos Let y = cos We need to find derivative of y, t

cost of goods sold sin A - 3 3 sin 0 , cos u cos A r2 sin 0 , cos 0 I