Work out 3.4 cos 13 degrees rounded to 2 d.p

Final answer: To work out 3.4 cos 13 degrees, convert the angle to radians and multiply by the cosine of the converted angle. Finally, round the answer to 2 decimal places. Explanation: To work out 3.4 cos 13 degrees, you can use the cosine function on a calculator. First, convert 13 degrees to radians by multiplying it by π/180. Then, multiply 3.4 by the cosine of the converted angle. Finally, round the answer to 2 decimal places. Step-by-step: Convert 13 degrees to radians: 13 * π/180 = 0.2269 radians Multiply 3.4 by the cosine of 0.2269: 3.4 * cos(0.2269) = 3.4 * 0.9743 = 3.30662 Round the answer to 2 decimal places: 3.31