1MA0 Higher June 2014 Paper 1 Q26

EdexcelHigherOld spec5 marksExact Trig & Graphs

26 The diagram shows part of a sketch of the curve \(y = \sin x^\circ\).

Sketch of y = sin x with P where the curve crosses the x-axis after the first maximum and Q at the minimum
(a) Write down the coordinates of the point \(P\). (1)
(b) Write down the coordinates of the point \(Q\). (1)

Here is a sketch of the curve \(y = a\cos bx^\circ + c\), \(0 \leqslant x \leqslant 360\)

Sketch of a cosine curve for x from 0 to 360 with maximum value 3 and minimum value -1, completing three cycles
(c) Find the values of \(a\), \(b\) and \(c\). (3)
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