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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.
100 metres
100.4 metres
113.4 metres

Q 2: Solve the triangle ABC given that A = 67o, b = 3 cms, c = 2 cms.
a = 5 cm, B = 70o19l, C = 39o 41l
a = 2 cm, B = 73oC = 39o 41l
a = 2.88 cm, B = 73o19l, C = 39o 41l

Q 3: cos 75o
Answer:

Q 4: The angular elevation of a tower from a point is 30 degrees at a point in a horizontal line to the foot of the tower and 100 metres near it is 60 degrees, find the distance of the first point from the tower.
100 metres
150 metres
86.6 metres

Q 5: In triangle ABC b = 4, c = 6, B = 30o, find sin C.
1/2
3/4
4/3

Q 6: Find the length of an arc of a circle of radius 10 cm which subtends an angle of 45o at the centre.
5/4
3/4
7/4

Q 7: The angles of a triangle ABC are in AP and b:c = 31/2:21/2. Find angle A.
45 degrees
60 degrees
75 degrees

Q 8: Find the radian measure of 15o.
/4
/12
/6

Question 9: This question is available to subscribers only!

Question 10: This question is available to subscribers only!


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