ค่า sin cos tan 3 ค่ามุมที่เจอบ่อยๆ จำได้ง่ายๆใน 50 วิค่ะ! #ตรีโกณ

cos sin  {displaystyle sin x=cos left={frac {1}{csc x}}} {displaystyle sin x=cos left(90^{ cosine, adjacenthypotenuse, cos ⁡ θ = sin ⁡ 1 sin A cosec A = 1 2 cos A sec A = 1 3 tan A cot A = 1 tan A + cot A 6 sin2 A + cos2 A = 1 7 sec2 A - tan2 A = 1 8 cosec2 A

Simplify the following to a single trigonometric expression with no fractions and where the argument is not negative cos x sin x Good calculators have sin, cos and tan on them, to make it easy for you Just put in the angle and press the button But you still need to remember what they

sin cos tan 11 22 33 negative−  sin A - 3 3 sin 0 , cos u cos A r2 sin 0 , cos 0 I