Answer to: Use a half-angle formula to find the exact value of the following expression. cos 15 degrees. By signing up, you'll get thousands of...
Answer to: Find the exact value for cos 165 degrees using the half-angle identity. By signing up, you'll get thousands of step-by-step solutions to...
Find the exact value of the expression cos 30 degrees + sin 45 degrees Find the exact value of the trigonometric function of the angle . Sin = ___ Find the exact value of the trigonometric function of the angle . 8 15 Sin = ___ Find the exact value of the trigonometric function of ...
The value of sin, cos, and tan of some angles are equal to the values of sin, cos, and tan of other angles. Let us take an example of cos(-30⁰). Since 30 degrees lie in the first quadrant we can say that cos(-30⁰) is equal to cos(30⁰) because all the angles in t...
Using the given information, find the area of the sector of a circle of radius r formed by a central angle theta. Radius, r: 2 inches Central Angle, theta: theta = 150 degrees (Simplify your answer. Type an exact answer i...
2007, [43] to determine the antifungal activities of these two compounds that have different molecular weights and degrees of deacetylation. For the pre-screen of COS-5.44, concentrations from 62 μg/ml to 125 μg/ml of COS-5.44 were tested (Figure 2B). 98 μl of cell mix at...
结果1 题目【题目】find exact solutions for x real and 0 in degrees.$$ \cos ^ { 2 } x + \sin ^ { 2 } x = 1 , 0 \leq x 相关知识点: 试题来源: 解析 【解析】 $$ A l l x s u c h t h a t 0 \leq x 反馈 收藏 ...
Step 4: Calculate the value of tan for all the angles. tan x = sin x/cos x Calculate the value of tan by putting all the angles given above. Angles (In Degrees) 0° 30° 45° 60° 90° 180° 270° 360° tan 0 1/√3 1 √3 ∞ 0 ∞ 0 Step 5: Calculate the value of the...
The value of cos 45 degrees is equal to the value of sin 45 degrees. Cos 45° = 1/√2. Learn to evaluate the value of the cosine of angle 45 with respect to the adjacent side and hypotenuse of right-angle triangle.
Answer to: Find the exact value of cos 330 degrees. (a) - square root 3 / 2. (b) 1/2. (c) square root 3 / 2. (d) - square root 2 / 2. By signing...