Asked by: Peña Bilescience space and astronomy
How do you know when to use Sohcahtoa?
Last Updated: 21st February, 2020
Sine, Cosine and Tangent.
|Sine:||soh||sin(θ) = opposite / hypotenuse|
|Tangent:||toa||tan(θ) = opposite / adjacent|
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Also question is, how do you know when to use Sin Cos or tan?
If you have the hypotenuse and the opposite side, then use sine. If you have the hypotenuse and the adjacent side, then use cosine. If you have the adjacent and the opposite sides, then use tangent.
Also Know, how is sin calculated? Sine (sin) function - Trigonometry. In a right triangle, the sine of an angle is the length of the opposite side divided by the length of the hypotenuse. In any right triangle, the sine of an angle x is the length of the opposite side (O) divided by the length of the hypotenuse (H).
Furthermore, how do you remember Sin Cos Tan?
An alternate way to remember the letters for Sin, Cos, and Tan is to memorize the nonsense syllables Oh, Ah, Oh-Ah (i.e. /o? ? ˈo?. ?/) for O/H, A/H, O/A. Or, to remember all six functions, Sin, Cos, Tan, Cot, Sec, and Csc, memorize the syllables O/H, A/H, Oh/Ah, Ah/Oh, H/A, H/O (i.e. /o? ? ˈo?.
How do you do tangent?
- Step 1 The two sides we know are Opposite (300) and Adjacent (400).
- Step 2 SOHCAHTOA tells us we must use Tangent.
- Step 3 Calculate Opposite/Adjacent = 300/400 = 0.75.
- Step 4 Find the angle from your calculator using tan-1