Which of the following expressions is equal to ⁡tan⁡(-20°)? tan(20°) -tan(20°) cot(-20°) cot(20°)

B.

Step-by-step explanation:

We have been given an expression . We are asked to find the equivalent expression to our given expression.

We know that tangent is an odd trigonometric function and it is symmetric about the origin.

A function is known as an odd function, if   and it is symmetric with respect to origin.  

Since tangent is an odd function, therefore, and option B i the correct choice.

  the correct choice is marked

step-by-step explanation:

the first two graphs show multiple turning points. the last graphs matches the description in every detail.