Mathematics
A man standing on a ship approaching the port towards the lighthouse is observing the top of the lighthouse. In 10 minutes, the angle of elevation of the top of the lighthouse changes from α to β. Then :
α > β
α < β
α = β
α ≤ β
Related Questions
Given a = 3 sec2 θ and b = 3 tan2 θ - 2. The value of (a - b) is :
1
2
3
5
Assertion (A) : The difference in class marks of the modal class and the median class of the following frequency distribution table is 0.
Class interval Frequency 20-30 1 30-40 3 40-50 2 50-60 6 60-70 4 Reason (R) : Modal class and median class are always the same for a given frequency distribution.
Both A and R are correct, and R is the correct explanation for A.
Both A and R are correct, and R is not the correct explanation for A.
A is true, but R is false.
Both A and R are true.
Assertion (A) : For a collection of 11 arrayed data, the median is the middle number.
Reason (R) : For the data 5, 9, 7, 13, 10, 11, 10, the median is 13.
Both A and R are correct, and R is the correct explanation for A.
Both A and R are correct, and R is not the correct explanation for A.
A is true, but R is false.
Both A and R are true.