Number and Algebra
Functions
Geometry & Trigonometry
Statistics & Probability
Calculus
Find all xxx in (−2π,2π)(-2\pi,2\pi)(−2π,2π) such that sin(x)=cos(π/3)\sin(x)=\cos(\pi/3)sin(x)=cos(π/3).
Find all x∈(−2π,2π)x\in(-2\pi,2\pi)x∈(−2π,2π) such that cos(x)=−1/2\cos(x)=-1/2cos(x)=−1/2.
Determine all xxx in [0,2π)[0,2\pi)[0,2π) such that sin(x)=sin(5π/6)\sin(x)=\sin(5\pi/6)sin(x)=sin(5π/6).
Determine all xxx in (−2π,2π)(-2\pi,2\pi)(−2π,2π) satisfying tan(x)=−3 \tan(x)=-\sqrt{3}\,tan(x)=−3.
Find all xxx in (−2π,2π)(-2\pi,2\pi)(−2π,2π) for which cot(x)=0\cot(x)=0cot(x)=0.
Find all xxx in (−π,π](-\pi,\pi](−π,π] satisfying tan(x)=tan(−π/4)\tan(x)=\tan(-\pi/4)tan(x)=tan(−π/4).
Find all values of xxx in (−2π,2π)(-2\pi,2\pi)(−2π,2π) such that cos(x)=cos(π/6)\cos(x)=\cos(\pi/6)cos(x)=cos(π/6).
Solve sec(x)=2\sec(x)=\sqrt{2}sec(x)=2 for x∈(−2π,2π)x\in(-2\pi,2\pi)x∈(−2π,2π).
Solve csc(x)=2\csc(x)=2csc(x)=2 for xxx in (−2π,2π)(-2\pi,2\pi)(−2π,2π).
Solve sin(x+π/4)=cos(π/4)\sin\bigl(x+\pi/4\bigr)=\cos(\pi/4)sin(x+π/4)=cos(π/4) for x∈[0,2π)x\in[0,2\pi)x∈[0,2π).
Find the principal value of arccos(−3/2)\arccos(-\sqrt{3}/2)arccos(−3/2) and list all solutions to cos(x)=−3/2\cos(x)=-\sqrt{3}/2cos(x)=−3/2 in (−2π,2π)(-2\pi,2\pi)(−2π,2π).
Solve sin(2x)=sin(π/3)\sin(2x)=\sin(\pi/3)sin(2x)=sin(π/3) for x∈(−2π,2π)x\in(-2\pi,2\pi)x∈(−2π,2π).
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Question Type 2: Given an equation of a line, finding the angle of elevation