If tan u = -3, find tan (-u).       1/ 3

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A: We know tanθ=PerpendicularBase=oppositeadjacent

Q: If tan u = -3, find tan (-u).       3

A: Consider tanθ=-3

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Q: The expression (secx+1)/(tanx) was simplified with the following steps:.

A: The trigonometric expression is given by secx+1tanx To determine: The simplified expression of the…

Ratios

A ratio is a comparison between two numbers of the same kind. It represents how many times one number contains another. It also represents how small or large one number is compared to the other.

Trigonometric Ratios

Trigonometric ratios give values of trigonometric functions. It always deals with triangles that have one angle measuring 90 degrees. These triangles are right-angled. We take the ratio of sides of these triangles.