# Zoe Austin

Trigonometry teacher | Verified Expert

I'm a graduate of California Institute of the Arts, specializing in Trigonometry. With a passion for mathematics, I aim to simplify complex trigonometric concepts and make them accessible to students. My teaching approach emphasizes practical applications and real-world examples to enhance understanding. Through personalized instruction, I help students develop problem-solving skills and build confidence in tackling trigonometry challenges. Whether it's mastering identities or understanding geometric principles, I'm dedicated to supporting students on their journey to mathematical proficiency.

## Questions

How do you find the exact value of #sin^-1(-sqrt2/2)#?

How do you factor and simplify #sin^4x-cos^4x#?

If #A= <-5 ,3 ,-7 ># and #B= <2 ,2 ,8 >#, what is #A*B -||A|| ||B||#?

What is the phase shift, vertical displacement with respect to #y=sinx# for the graph #y=sin(x-50^circ)+3#?

How do you solve #cosx=sinx#?

How do you evaluate the equation arctan(-1)?

If sides A and B of a triangle have lengths of 3 and 5 respectively, and the angle between them is #(pi)/3#, then what is the area of the triangle?

Solve #cos^2theta=1/2#, if #theta# lies in the interval #[0,2pi)#?

A triangle has sides A, B, and C. The angle between sides A and B is #(pi)/6#. If side C has a length of #5 # and the angle between sides B and C is #(5pi)/12#, what are the lengths of sides A and B?

How do you verify #2csc2x=secxcscx#?

How do you add #(8+8i)+(-4+6i)# in trigonometric form?

How do you convert #rsintheta = -2# into rectangular form?

How do you graph the polar equation #1=rcos(theta-pi/6)#?

How do you prove that #costheta/(1-sintheta) + costheta/(1+sintheta) = 2 /costheta#?

If #A= <2 ,6 ,-3 ># and #B= <-6 ,4 ,7 >#, what is #A*B -||A|| ||B||#?

How do I prove that #1/(sec A+1)+1/(sec A-1)#=#2 csc A cot A# ?

Write the expression as the sine, cosine, or tangent of an angle?

If 3costheta+4sintheta=Asin(theta+alpha),then values of A and alpha are?

How do you find the 3rd root of #8e^(45i)#?

How do you evaluate #arccos(sin(13pi/7))#?