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 Form 4 Mathematics graphs of trigonometric functions questions and answers

(a) Complete the table below giving your values to correct 1 decimal place.
figtrigono23620201630.JPG
(b) On the grid provided, using the same scale and axes draw the graph of
y=2sin(#x+20^0#) and y=#sqrt3# cos x for #0^0lexle240^0#
(c) Using the same graphs drawn in (b) above to
determine:
(i)the values of x for which 2sin(#x+20^0#)=#sqrt3# cosx
(ii)the difference in the amplitude of y=2sin(#x+20^0#) and y=#sqrt3# cos x

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