confused on how to code this

(a) Create a variable named theta. Assign an angle of to it.

Prove the trigonometric identity sin^2(theta)+cos^2(theta)=1

Here the is the variable ‘theta’ you created.

(b) Convert theta into degrees and store in a new variable theta_d and then repeat (a) to prove the trigonometric identity again. (Do not use function deg2rad).

[David Hill]

Show us your code and ask a specific question.

[Brendan Jozwiak]

dont know how to fix this error and also in part B im unsure how to convert the the theta into degrees without using the function degree2rad

[Walter Roberson]

sin(theta)^2

[Chunru]

theta = pi/2 instead of theta=angle(pi/2). Angle is a function to find the phase angle of a complex number. For a real number pi/2, the "angle" is 0.

Answer 1

[Walter Roberson]

Use sin(theta)^2

360 degrees = 2π radians

divide by 2π

360/(2π) degrees = 1 radian

so x radians = 360/(2π) * x degrees

In matlab π is pi

Answer 2

[Image Analyst]

To convert theta into degrees

theta_d = theta * 180 / pi

To use trig functions on degrees, use the "d" version, for example sind instead of sin

sind(theta_d) ^ 2