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CBSE - X - Maths - Some Applications of Trigonometry
a cos theta + b sin theta = 5 find value of b cos theta - a sin theta
Asked by Soma
28th February 2019,
3:45 PM
CBSE - X - Maths - Some Applications of Trigonometry
Q
Asked by araima2001
1st January 2016,
6:25 PM
CBSE - X - Maths - Some Applications of Trigonometry
The angle of elevation of a cloud from a point 60m above a lake is 
& the angle of depression of its image in lake is 
FIND The height of cloud . Also find the height of cloud if angle of elevation is 
from a point h meters above lake & angle of depression of its reflection in the lake is 
.
& the angle of depression of its image in lake is FIND The height of cloud . Also find the height of cloud if angle of elevation is from a point h meters above lake & angle of depression of its reflection in the lake is .
Asked by araima2001
24th November 2015,
9:15 AM
CBSE - X - Maths - Some Applications of Trigonometry
The angle of elevation of the top of an unfinished tower at a point distance 80m from its base is 
.How much higher must the tower be raised so that its angle of elevation at the same point may be 
?
.How much higher must the tower be raised so that its angle of elevation at the same point may be ?
Asked by araima2001
8th November 2015,
11:55 AM
CBSE - X - Maths - Some Applications of Trigonometry
An aeroplane is at a height of h from the surface of the earth. If the radius of the earth is r, the distance of the horizon seen from the plane will be ?
Asked by araima2001
8th November 2015,
7:21 AM
CBSE - X - Maths - Some Applications of Trigonometry
solve:
Asked by araima2001
12th October 2015,
12:54 PM
CBSE - X - Maths - Some Applications of Trigonometry
A vertical tower stands on a horizontal plane & is surmounted by a vertical flagstaff of height h. At a point on the plane the angle of elevation of the bottom & the top of the flagstaff are respectively 
. The height of the tower is:
(a)
(b)
(c)1 (d) 
. The height of the tower is: (b)
Asked by araima2001
30th September 2015,
6:02 PM
CBSE - X - Maths - Some Applications of Trigonometry
A square tower stands upon a horizontal plane. From a point in this plane, from which three of its upper corners are visible, their angular elevations are respectively 45 dergrees, 60 degrees and 45 degrees. Show that the height of the tower is to the breadth of one of its sides as √6(√5+1) to 4.
please answer fast...all help appreciated :-D
Asked by reetatyagi8
31st May 2015,
12:53 PM
CBSE - X - Maths - Some Applications of Trigonometry
as observed from the top of the lighthouse, 100m high above sea level , the angle of depression of a ship changes from 30 degrees to 60 degrees.
determine the distance travelled by ship during the period of observation.
Asked by Akansha
17th March 2015,
10:07 PM
CBSE - X - Maths - Some Applications of Trigonometry
a man on a cliff , observes a boat at an angle of depression 30 degree which aproaching the shore to the point 'A' ON THE IMMEDIATELY beneath the observer with a uniform speed . after 12 miniutes, the angle of depression of the boat is found to be 60 degree. the time taken by the boat to reach the shore is options[ 18 min, 19 min, 20 min, 21 min]
Asked by Rony Joseph
5th April 2014,
10:13 PM
