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Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

High School Mathematics - 2
10.18 Trignometry Review

Function 0o 30456090
sin 0/2 1/22/23/24/2
cos 4/2 3/22/21/20
tan 0 3/313undefined
sec 1 23/322undefined
csc undefined 2223/31
cot undefined 313/30

sin cos tan
0 0 1 0
90 1 0 infinity
180 0 -1 0
270 -1 0 infinity




Functions of angles in all quadrants in terms of those in quadrant 1
-A 900 A
P/2 A
1800 A
P A
2700 A
3P/2 A
3600 A
2P A
sin -sinA cos A sin A -cosA sin A
cos cos A sin A -cos A sin A cos A
tan -tan A cot A tan A cot A tan A
csc -csc A sec A csc A -sec A csc A
sec sec A csc A -sec A csc A sec A
cot -cot A tan A cot A tan A cot A

Q 1: What is the angle of elevation of the sun when the length of the shadow of a pole is 31/2 times the height of the pole?
90o
60o
30o

Q 2: Find the length of an arc of a circle of radius 10 cm which subtends an angle of 45o at the centre.
3/4
7/4
5/4

Q 3: Find the degree measure of 3/4.
35o
42057l18ll
45o

Q 4: Find the radian measure of 15o.
/6
/12
/4

Q 5: The angle of elevation of the top of a tower which is yet incomplete at a point 120 metres from its base is 45o. How much higher should it be raised so that the elevation at the same point may become 60o?
87.84 metres
100 metres
36.85 metres

Q 6: From the light house the angles of depression of two ships on opposite sides of the light house are observed to be 30o and 45o. If the height of the light house is 300 metres, find the distance between the ships if the line joining them passes through foot of the light house.
819.6 metres
800 metres
809 metres

Q 7: In triangle ABC b = 4, c = 6, B = 30o, find sin C.
3/4
4/3
1/2

Q 8: A wheel makes 360 revolutions in one minute. Through how many radians does it turn in one second?
12
4/6
5/3

Question 9: This question is available to subscribers only!

Question 10: This question is available to subscribers only!


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