MathematicsTrigonometry (NTSE Stage2 (NationalLevel) ScholasticAptitude & Language Comprehension): Questions 1  7 of 14
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Question number: 1
» Mathematics » Trigonometry
Appeared in Year: 2013
Question
The value of tan 1° tan2° tan3°……. tan 89° is
Choices
Choice (4)  Response  

a.  0 

b.  0.5 

c.  2 

d.  1 

Question number: 2
» Mathematics » Trigonometry
Question
The shadow of a tower is 15 m, when the Sun’s elevation is 30°. What is the length of the shadow, when the Sun’s elevation is 60°?
Choices
Choice (4)  Response  

a.  4 m 

b.  3 m 

c.  6 m 

d.  5 m 

Question number: 3
» Mathematics » Trigonometry
Question
A tower stands vertically on the ground. From a point on the ground which is 30 m away from the foot of a tower, the angle of elevation of the top of the tower is found to be 45°. The height of the tower is
Choices
Choice (4)  Response  

a.  30 m 

b.  28 m 

c.  35 m 

d.  32 m 

Question number: 4
» Mathematics » Trigonometry
Question
The points (2, 2), (6, 3) and (4, 11) are the vertices of
Choices
Choice (4)  Response  

a.  an equilateral triangle 

b.  a right angled triangle 

c.  an isosceles triangle 

d.  a scalene triangle 

Question number: 5
» Mathematics » Trigonometry
Question
In the given figure, . Find the value of y.
Choices
Choice (4)  Response  

a.  72° 

b.  79° 

c.  74° 

d.  77° 

Question number: 6
» Mathematics » Trigonometry
Question
If the length of shadow of a pole on a level ground is twice the length of that pole, then the angle of elevation of the sun is
Choices
Choice (4)  Response  

a.  45° 

b.  30° 

c.  60° 

d.  None of the above 

Question number: 7
» Mathematics » Trigonometry
Question
If then value of x in ∆ABC is
Choices
Choice (4)  Response  

a.  24° 

b.  12° 

c.  30° 

d.  28° 
