Post on 06-Mar-2015
Common Errors in
Pupil’s Work on
Trigonometric Ratios
Common Errors in Pupil’s Work on Trigonometric Ratios
Common Errors in Pupil’s Work on Trigonometric Ratios
Common Errors in Pupil’s Work on Trigonometric Ratios
Common Errors in Pupil’s Work on Trigonometric Ratios
Common Errors in Pupil’s Work on Trigonometric Ratios
Common Errors in Pupil’s Work on Trigonometric Ratios
Common Errors in Pupil’s Work on Trigonometric Ratios
Common Errors in Pupil’s Work on Trigonometric Ratios
Summary1. Know the difference between the angle and
the trignometric ratio
Common Errors in Pupil’s Work on Trigonometric Ratios
Summary2. Use simple trignometric ratios as far as
possible
Common Errors in Pupil’s Work on Trigonometric Ratios
Summary3. Know that for sine, both obtuse and acute
angles give the same ratio, but not cos & tan!
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