
Advanced Engineering Mathematics
10th Edition
ISBN: 9780470458365
Author: Erwin Kreyszig
Publisher: Wiley, John & Sons, Incorporated
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Please answer 7a, 7b, 8

Transcribed Image Text:M
M
7 a
8
C
6
viven y PUNA I UJUI y
쯤.
3
A I Ն) ՆԵ ԵՒՍ 1
=
1 + sin 2x and y = 2 cos x for
On the same set of axes, sketch the graphs of y
0 ≤ x ≤ 2π.
Hence state the number of solutions of the equation 1 + sin 2x = 2 cos x for
0 ≤ x ≤ 2π.
The graph shows the height of water below the level of a walkway as a function of time.
The equation of the graph is of the form y = a cos (bt) + m. Find the values of a,b and m.
Write down the number of solutions of the equation 1 + sin 2x = 2 cos x for
−2π ≤ x ≤ 6π.
MM
12
24 x
9
A Ferris wheel has radius 12 m and the centre of the wheel is 14 m above ground. The
wheel takes four minutes to complete a full rotation
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