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Question 1
From two points on the ground lying on a straight line through the foot of a pillar, the two angles of elevation of the top of the pillar are complementary to each other. If the distance of the two points from the foot of the pillar are 9 metres and 16 metres and the two points lie on tye same side of the pillar, then the height of the pillar is
Question 2
What is the value of (cosecA - cotA) / (secA + tanA)?
Question 3
Find the value of .
Question 4
If sec 26° = A, find the value of .
Question 5
A wheel rotates 7 times in one second. In what time the wheel rotates 110 radian.
Question 6
If secθ + tanθ = 5, find the value of secθ.
Question 7
Find the value of Secθ ( ) – 2 tan2θ.
Question 8
If , where , which of the following is correct?
I.
II.
III.
Question 9
Two men are on opposite sides of a tower. They measure the angles of elevation of the top of the tower as 30˚ and 45˚ respectively. If the height of the tower is 50 m, the distance between the two men is (Take )
Question 10
The angle of elevation of an aero plane from a point on the ground is 60 °. After 15 seconds flight, the elevation changes to 30 °, If the aero plane is flying at a height of 1500√𝟑m, find the speed of the plane.
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Jan 5SSC & Railway