Cos 150 Degrees In Fraction. The Trignometric Table of sin cos tan cosec sec cot is useful to learn the common angles of trigonometrical ratios from 0 to 360. Since our angle is greater than 90 and less than or equal to 180 degrees it is located in Quadrant II In the second quadrant the values for sin are positive only.
3pi4 sin3pi4. Cos 302 1 cos 302. Cos 15 cos 45 - 30 cos45cos30 sin45sin30 1sqrt2 sqrt32 1sqrt212 12 sqrt2 sqrt3 1 sqrt3 1 2sqrt2 14 sqrt2 sqrt3 1.
Find the Exact Value cos150 Apply the reference angleby finding the anglewith equivalenttrig values in the first quadrant.
Calculate cos140 Determine quadrant. 30 sin30 05. 150 is an obtuse angle since it is greater than 90. 140 is an obtuse angle since it is greater than 90 cos140 -076604444132428.
