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Question 1
The least value of 
is
is Question 2
What is the value of 
Question 3
What is the value of [(cos7A + cos5A) ÷ (sin7A − sin5A)]?
Question 4
If 
find tanθ + cotθ.
find tanθ + cotθ.Question 5
A boat is sailing towards a lighthouse of height 20√3 m at a certain speed. The angle of elevation of the top of the lighthouse changes from 30° to 60° in 10 seconds. What is the time taken (in seconds) by the boat to reach the lighthouse from its initial position?
Question 6
If cos(A/2) = x; then the value of x is:
Question 7
(cos 45°cos 15°)(tan 60° – 1) = ?
Question 8
If 3 sinθ + 4 cos θ = 5 (0 < θ < 90°); then the value of sinθ is:
Question 9
What is the simplified value of 
?
? Question 10
The value of 
is:
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