TMUA 2020 Paper 2 Q9 — Worked Solution

P2·Trigonometry·5.5Official · 2020 · Q9

radians-degreesunit-conversionfunction-evaluation

A student wishes to evaluate the function

f (x) = x sin x

, where

x

is in radians, but has a calculator that only works in degrees.What could the student type into their calculator to correctly evaluate

f (4)

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