Final answer:
The Complex Number Calculator (option C) can be used to convert complex form to trig form.
Step-by-step explanation:
The calculator that can be used to convert complex form to trig form is the Complex Number Calculator (option C).
Complex numbers are numbers that have both a real part and an imaginary part, and can be represented in rectangular form (a + bi) or trigonometric form (r(cosθ + isinθ)). The Complex Number Calculator allows you to input the values of real and imaginary parts and convert them to trigonometric form by calculating the magnitude (r) and argument (θ).
For example, if you have a complex number 3 + 4i, you can use the Complex Number Calculator to find its magnitude (r) using Pythagorean theorem (r = √(a^2 + b^2)) and its argument (θ) using inverse tangent (θ = arctan(b/a)).