In basic trigonometry computes sine, cosine, tangent, and their reciprocal. Calculates arcsin, arccos, and arctan values inside inverse trigonometric equations. Trigonometric identities …

To solve a trigonometric simplify the equation using trigonometric identities. Then, write the equation in a standard form, and isolate the variable using algebraic manipulation to solve for …

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Explanation: You need to rearrange the equation: sinx = 53 x= sin−1(53) ≈36.869… If points on lower segment are A,B,C,D and on upper E,F,G (from left to right) the triangles ABE and FGD …

f(x)=x^3 ; prove\:\tan^2(x)-\sin^2(x)=\tan^2(x)\sin^2(x) \frac{d}{dx}(\frac{3x+9}{2-x}) (\sin^2(\theta))' \sin(120) \lim _{x\to 0}(x\ln (x)) \int e^x\cos (x)dx \int_{0}^{\pi}\sin(x)dx

sin (20°)≈0.34202。 正弦（sine），数学术语，在 直角三角形 中，任意一锐角∠A的对边与 斜边 的比叫做∠A的正弦，记作sinA（由英语sine一词简写得来），即sinA=∠A的对边/斜边。 sin = 直 …

The solution is the x-value of the point of intersection. Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by …

Rewrite the equation as x 20 = sin(80) x 20 = sin (80). Multiply both sides of the equation by 20 20. Simplify both sides of the equation. Tap for more steps... Free math problem solver …

先积化和差：2sin50°cos（x+20°）=sin（x+70°）+sin（30°-x）=sin（x+50°） 移项得：sin（x+70°）-sin（x+50°）=sin（x-30°） 再和差化积：2sin10°cos（x+60°）=sin（x-30°）

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