testing sin, cos, tan of  random(0,90,120,135,150,180,210,225,240,270,300,315,330) degrees but in radians

testing sin, cos, tan of angles that are negative or greater than 2pi radians that result in nice exact values. 

multiple choice testing sin, cos, tan of  random(pi/6, pi/4, pi/3) radians

multiple choice testing csc, sec, cot  of  random(pi/6, pi/4, pi/3) radians

Convert from degrees to radians

Convert from radians to degrees

Unit circle definition of sin, cos, tan using radians

Multiple choice questions. Given randomised trig functions select the possible ways of writing the domain of the function.

Find multiple solutions of sin

Working 26_10_16

Find multiple solutions of cos

Working 26_10_16

More difficult trigonometric equations with radians

Converting Radians to Degrees

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Converting Degrees to Radians

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sin vertically shifted Working 1_11_16

Finding the modulus and argument (in radians) of four complex numbers; the arguments between $-\pi$ and $\pi$ and careful with quadrants!

sin vertically shifted Working 1_11_16

Finding the modulus and argument (in radians) of four complex numbers; the arguments between $-\pi$ and $\pi$ and careful with quadrants!

Simple trig equations with radians

Convert degrees to radians and radians to degrees.

Simple trig equations with radians

sin horizontal shifted Working 1_11_16

Multiple solution of sin

Simple trig equations with radians

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Rotate $y=a(\cos(x)+b)$ by $2\pi$ radians about the $x$-axis between $x=c\pi$ and $x=(c+2)\pi$. Find the volume of revolution.

Rotate the graph of  $y=a\ln(bx)$  by $2\pi$ radians about the $y$-axis between $y=c$ and $y=d$. Find the volume of revolution.

Practice to decide which quadrant a complex number lies in.

Finding the modulus and argument (in radians) of four complex numbers; the arguments between $-\pi$ and $\pi$ and careful with quadrants!

Rotate $y=a(\cos(x)+b)$ by $2\pi$ radians about the $x$-axis between $x=c\pi$ and $x=(c+2)\pi$. Find the volume of revolution.

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