a) Without using a calculator, state whether each of these is positive or negative. i) sin 130
Question:
a) Without using a calculator, state whether each of these is positive or negative.
i) sin 130°
ii) cos 130°
iii) sin 255°
iv) cos 255°
b) Use your calculator to find the value of
i) sin 130°
ii) cos 130°
iii) sin 255°
iv) cos 255°.
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Related Book For
Complete Pure Mathematics 1 For Cambridge International AS & A Level
ISBN: 9780198427438
2nd Edition
Authors: Jean Linsky, Brian Western, James Nicholson
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