01
Press these keys
SIN→COS→TAN→2nd→SIN/COS/TAN
Step 1 of 5. Press SIN.
02
Walkthrough
- 1Confirm mode
Set degree or radian mode to match the question.
- 2Ratio
Use SIN, COS or TAN for a known angle.
- 3Angle
Use 2nd then SIN/COS/TAN for the principal inverse value.
03
Worked example
Find θ in degrees when sin θ=0.6 and 0°≤θ≤180°.
NORMAL FLOAT AUTO REAL MP
sin⁻¹(.6)36.86989765Answerθ≈36.9° or 143.1°.