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Khushi Jain
Subject: Maths
, asked on 17/2/18
From a point on the ground 60 m away from the foot of a tower, the angle of elevation of the top of the tower is 30°. The angle of elevation of the top of a water tank (on the top of the tower) is 45°. Find
(i) height of the tower.
(ii) depth of the tank.
Answer
1
Amit Rana
Subject: Maths
, asked on 16/2/18
Plzzzz tell this question
Answer
3
Son Ser
Subject: Maths
, asked on 14/2/18
Plzz fast i have exams 2moro. Dont provide any link plzzzzz
Q. Prove that
$\frac{\left(1+cotA+\mathrm{tan}A\right)\left(\mathrm{sin}A-\mathrm{cos}A\right)}{\left(se{c}^{3}A-\mathrm{cos}e{c}^{3}A\right)}={\mathrm{sin}}^{2}A{\mathrm{cos}}^{2}A$
Answer
2
Aayushi Rohilla
Subject: Maths
, asked on 12/2/18
In fig what is the angle of elevation of point A from C and angle of depression of point D from A.:
Answer
1
Aayushi Rohilla
Subject: Maths
, asked on 12/2/18
The angle of elevation of the top of the pole is 60. If the height of the pole increases the angle of elevation will also increase. State true or false and justify your answer.
Answer
4
Mitali Singhal
Subject: Maths
, asked on 12/2/18
From a point on ground the angle of elevation of top of building and of helicopter hovering at some height over top of building are alpha and beta respectively. Prove that vertical distance between helicopter and top of building is h(tan beta -tan alpha )/tan alpha where h=height of building.
Answer
2
Harsh
Subject: Maths
, asked on 11/2/18
Answer question 24 with proper steps.
Answer
1
S.s.shri Darshini
Subject: Maths
, asked on 11/2/18
Pls. Ans. Q 26....pls. don't give link for a similar query... I want to check if my answer is correct so pls. Try Solving it
Answer
1
Lakshya Jain
Subject: Maths
, asked on 10/2/18
A fire at building A is reported on telephoneto tho fire station F1 and F2which are 10 km apart from each other on a straight road .F1 observes that the fire is at an angle of 60° to the road and F2 observes that it is at angle 45°from it. According to decision by higher authorities station F1 sends its team.
HOW MUCH DISTANCE WILL THE STATION F1 TEAM HAS TO TRAVEL?
Answer
1
Gouri Lahoti
Subject: Maths
, asked on 8/2/18
Question) Given
$\mathrm{tan}\theta +cot\theta =2Find{\mathrm{tan}}^{45}\theta +co{t}^{15}\theta .$
Answer
1
S.s.shri Darshini
Subject: Maths
, asked on 7/2/18
$Theanglesofdepressionofthetopandbottomofa20mhighbuildingfromthetopofamulti-storeyedbuildingare30\xb0and45\xb0respectively.Findtheheightofthemulti-storeyedbulding.(\sqrt{3}=1.732)$
Answer
2
Deisha Gupta
Subject: Maths
, asked on 6/2/18
Aladder rests against a wall at an angle alpha to the horizontal . It's foot is pulled away from the wall through a distance a , so that it slides a distance between down the wall making angle beta with the horizontal . Show
a/b - cos alpha - cos beta / sin beta - sin alpha
Answer
1
Son Ser
Subject: Maths
, asked on 6/2/18
Plzz fast i have exams 2moro
$9.Ifsec\theta +\mathrm{tan}\theta =m,showthat\frac{{m}^{2}-1}{{m}^{2}+1}=\mathrm{sin}\theta $
Answer
1
Amit Rana
Subject: Maths
, asked on 4/2/18
Plzzz tell question no 7
Q.7. In the figure, find the value of DC.
Answer
2
Amit Rana
Subject: Maths
, asked on 4/2/18
PlZz tell question no 7
Answer
1
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What are you looking for?

(i) height of the tower.

(ii) depth of the tank.

Q. Prove that

$\frac{\left(1+cotA+\mathrm{tan}A\right)\left(\mathrm{sin}A-\mathrm{cos}A\right)}{\left(se{c}^{3}A-\mathrm{cos}e{c}^{3}A\right)}={\mathrm{sin}}^{2}A{\mathrm{cos}}^{2}A$

HOW MUCH DISTANCE WILL THE STATION F1 TEAM HAS TO TRAVEL?

a/b - cos alpha - cos beta / sin beta - sin alpha

$9.Ifsec\theta +\mathrm{tan}\theta =m,showthat\frac{{m}^{2}-1}{{m}^{2}+1}=\mathrm{sin}\theta $

Q.7. In the figure, find the value of DC.