Given Sin (90 – a) = 1/2 , find without using tables or calculators the value of Cos a.
Given Sin (90 – a) = 1/2 , find without using tables or calculators the value of Cos a.
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Without using trigonometric tables , evaluate the following : (co
Simplify the expression
In the figure below the lines AB and CD are parallel. AD and CB intersect at X. AB = 6cm, CD = 9cm and DX
Given Sin (90 – a) = 1/2 , find without using tables or
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