An example of basic trigonometric functions question is find tan
.
<h3>What are trigonometric functions?</h3>
The term trigonometric function is known to be made up of functions such as sine (sin), cosine (cos), tangent (tan), etc., that stands for the ratios of sides of all right triangles.
To solve for tan 
It will be
= 2
+ 
θ = 
θ = 
To know the right angle,
θ =
x 180/4 = 45⁰
tan θ = 1
Therefore, tan
= -1
Learn more about trigonometric functions from
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I think the answer to this question is A: to use prior knowledge to understand historical passages because when you are given multiple choice questions as an example use the process of elimination such as which answers you think are wrong and which you think are right.
ammonia moles 1. 2 in there