Quick questions on Polar coordinates and curves: conversion and sketching r = f(theta) - OCR A-Level Further Maths A

3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is wrong quadrant when converting to polar?

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\tan\theta = \dfrac{y}{x}

alone does not fix the quadrant; use the signs of

x

and

y

to choose

\theta

correctly.

What is q1?

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Convert

r = 3

to Cartesian form. [1 mark]

What is q2?

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Find where the cardioid

r = 2(1 - \cos\theta)

passes through the pole. [2 marks]

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