# Hriech 270 mínus theta

Trigonometric ratios of 270 degree minus theta. Trigonometric ratios of 270 degree plus theta. Trigonometric ratios of angles greater than or equal to 360 degree.

## Trigonometry Formulas: Trigonometry is the branch of mathematics that deals with the relationship between the sides and angles of a triangle. There are many interesting applications of Trigonometry that one can try out in their day-to-day lives.

Let theta be an acute angle (<90°) So, when you subtract it from 270 the new angle is in 3rd quadrant. We know that sin value of any angle in 3rd quadrant is negative. And when you add or subtract theta from 90° or from 270° sin converts to cos. In this video we are going to derive the formula for tan(270°-θ) using the previous identities we derived on this channel.

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