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Tamilnadu Samacheer Kalvi 11th Maths Solutions Chapter 3 Trigonometry Ex 3.11

Question 1.
Samacheer Kalvi 11th Maths Solutions Chapter 3 Trigonometry Ex 3.11 1
Solution:
Samacheer Kalvi 11th Maths Solutions Chapter 3 Trigonometry Ex 3.11 2
Samacheer Kalvi 11th Maths Solutions Chapter 3 Trigonometry Ex 3.11 3

Samacheer Kalvi 11th Maths Solutions Chapter 3 Trigonometry Ex 3.11

Question 2.
A man standing directly opposite to one side of a road of width x meter views a circular shaped traffic green signal of diameter a meter on the other side of the road. The bottom of the green signal is b meter height from the horizontal level of viewer’s eye. If a denotes the angle subtended by the diameter of the green signal at the viewer’s eye, then prove that
Samacheer Kalvi 11th Maths Solutions Chapter 3 Trigonometry Ex 3.11 4
Solution:
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Samacheer Kalvi 11th Maths Solutions Chapter 3 Trigonometry Ex 3.11 6

Samacheer Kalvi 11th Maths Solutions Chapter 3 Trigonometry Ex 3.11 Additional Questions

Question 1.
Samacheer Kalvi 11th Maths Solutions Chapter 3 Trigonometry Ex 3.11 7
Solution:
Samacheer Kalvi 11th Maths Solutions Chapter 3 Trigonometry Ex 3.11 8
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Question 2.
Samacheer Kalvi 11th Maths Solutions Chapter 3 Trigonometry Ex 3.11 10
Solution:
Samacheer Kalvi 11th Maths Solutions Chapter 3 Trigonometry Ex 3.11 19
The negative value of x is rejected since it makes RHS negative
∴ x = \(\frac{1}{6}\)

Question 3.
Samacheer Kalvi 11th Maths Solutions Chapter 3 Trigonometry Ex 3.11 12
Solution:
Samacheer Kalvi 11th Maths Solutions Chapter 3 Trigonometry Ex 3.11 13

Samacheer Kalvi 11th Maths Solutions Chapter 3 Trigonometry Ex 3.11

Question 4.
Samacheer Kalvi 11th Maths Solutions Chapter 3 Trigonometry Ex 3.11 14
Solution:
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Question 5.
Samacheer Kalvi 11th Maths Solutions Chapter 3 Trigonometry Ex 3.11 17
Solution:
Samacheer Kalvi 11th Maths Solutions Chapter 3 Trigonometry Ex 3.11 18

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