Sine Cosine Tangent Compared, Shape & Space Revision Notes From Gcse Maths Tutor
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Sin, Cos & Tan Compared
Shape & Space GCSE Maths Tutor
www.gcsemathstutor.com
topic notes
[email protected]
Changing sign of ratios with increasing angle
In turn, look at each ratio as the value of x and y changes with increasing angle.
The results can be summarised in this diagram:
GCSE Maths Tutor
www.gcsemathstutor.com
[email protected]
Shape & Space GCSE Maths Tutor
Sin, Cos & Tan Compared www.gcsemathstutor.com
topic notes
[email protected]
The Sine Curve
note: the sine graph starts at zero it repeats itself every 360 degrees y is never more than 1 or less than -1 a sin graph 'leads' a cos graph by 90 degrees
The Cosine Curve
note: the cosine graph starts at one it repeats itself every 360 degrees y is never more than 1 or less than -1 a cos graph 'lags' a sin graph by 90 degrees
GCSE Maths Tutor
www.gcsemathstutor.com
[email protected]
Shape & Space GCSE Maths Tutor
Sin, Cos & Tan Compared www.gcsemathstutor.com
topic notes
[email protected]
The Tangent Curve
note: the tangent graph starts at zero it repeats itself every 180 degrees y can vary between numbers approaching infinity and minus infinity
GCSE Maths Tutor
www.gcsemathstutor.com
[email protected]
Shape & Space GCSE Maths Tutor
www.gcsemathstutor.com
topic notes
[email protected]
Changing sign of ratios with increasing angle
In turn, look at each ratio as the value of x and y changes with increasing angle.
The results can be summarised in this diagram:
GCSE Maths Tutor
www.gcsemathstutor.com
[email protected]
Shape & Space GCSE Maths Tutor
Sin, Cos & Tan Compared www.gcsemathstutor.com
topic notes
[email protected]
The Sine Curve
note: the sine graph starts at zero it repeats itself every 360 degrees y is never more than 1 or less than -1 a sin graph 'leads' a cos graph by 90 degrees
The Cosine Curve
note: the cosine graph starts at one it repeats itself every 360 degrees y is never more than 1 or less than -1 a cos graph 'lags' a sin graph by 90 degrees
GCSE Maths Tutor
www.gcsemathstutor.com
[email protected]
Shape & Space GCSE Maths Tutor
Sin, Cos & Tan Compared www.gcsemathstutor.com
topic notes
[email protected]
The Tangent Curve
note: the tangent graph starts at zero it repeats itself every 180 degrees y can vary between numbers approaching infinity and minus infinity
GCSE Maths Tutor
www.gcsemathstutor.com
[email protected]
