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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: A vertical flagstaff stands on a horizontal plane from a point distant 150 metres from its foot, the angle of elevation of its top is found to be 30o, find the height of the flagstaff.
113.4 metres
100 metres
100.4 metres

Q 2: Find the radian measure corresponding to -37o30l.
-5/24
-5/8
-5/4

Q 3: If tan C = 11, find sin C. cos C.
Answer:

Q 4: Show that cot x.cot 2x - cot 2x cot 3x - cot 3x cot x = 1
Answer:

Q 5: The angle of elevation of the top of a tower from a point 60m from its foot is 30o. Find the height of the tower.
20 m
100 m
2031/2 m

Q 6: In triangle ABC, if b = 6, c = 4, cos A = 1/12, find a
4
31/2
4.31/2

Question 7: This question is available to subscribers only!

Question 8: This question is available to subscribers only!


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