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Rajesh Kumawat
Subject: Maths
, asked on 26/3/18
pls do it fast with all steps
Q.
cos
θ
+
sin
θ
+
1
cos
θ
sin
θ
+
cos
θ
-
1
sin
θ
Answer
2
Dipesh Kumar Karesia
Subject: Maths
, asked on 26/3/18
plz solve 12 fast...
Q.12. If
cos
θ
-
sin
θ
=
2
sin
θ
, then prove that
cos
θ
+
sin
θ
=
cos
θ
Answer
1
Anandita .
Subject: Maths
, asked on 26/3/18
What is:
(i) Sin
(ii)Cos
(iii)Tan
???
Answer
3
Harsh
Subject: Maths
, asked on 26/3/18
Answer the given question with proper steps.
Q.6. If
s
e
c
A
+
tan
A
s
e
c
B
+
tan
B
s
e
c
C
+
tan
C
=
s
e
c
A
-
tan
A
s
e
c
B
-
tan
B
s
e
c
C
-
tan
C
prove that each of the side is equal to
±
1
.
Answer
2
Amit Rana
Subject: Maths
, asked on 26/3/18
Plzzzz answer this question sir or mam
Q). Prove that:
c
o
t
θ
+
cos
e
c
θ
-
1
c
o
t
θ
-
cos
e
c
θ
+
1
=
1
+
cos
θ
sin
θ
Answer
4
Amit Rana
Subject: Maths
, asked on 26/3/18
Prove that:
Q).
c
o
t
θ
+
cos
e
c
θ
-
1
c
o
t
θ
-
cos
e
c
θ
+
1
=
1
+
cos
θ
sin
θ
Answer
1
Sathana G
Subject: Maths
, asked on 26/3/18
Solve this :
Q
.
Prove
that
:
cosec
2
θ
-
sin
θ
2
=
sin
θ
cos
θ
=
1
tan
θ
+
cot
θ
.
Answer
1
Deisha Gupta
Subject: Maths
, asked on 26/3/18
Solve this :
4
.
If
cos
θ
+
sin
θ
=
2
cos
θ
,
then
show
that
(
cos
θ
-
sin
θ
)
=
2
sin
θ
Answer
1
अर्कज ..
Subject: Maths
, asked on 26/3/18
Q. The length of the shadow of a man is equal to the height of man. The angle of elevation is _____.
Answer
1
Prateek Kumar
Subject: Maths
, asked on 25/3/18
Solve this:
Q.3. Prove that
tan
2
θ
+
c
o
t
2
θ
+
2
=
cos
e
c
2
θ
s
e
c
2
θ
Answer
2
Champ Jee
Subject: Maths
, asked on 25/3/18
Write the maximum and minimum values of sin theta.
(Ans : 1 and -1).
I came to know that graph for sin theta is up and down to x - axis and repeats after 180 degree in 11th std book. But please can you explain this answer?
Answer
1
Anita Mary John
Subject: Maths
, asked on 25/3/18
prove that ser2(90-theeta)/2(sin2 25degree+sin2 65degree) + 2sin30 degreetan2 32dwgree - tan2 58degree/3(sec2 33degree + cot2 57degree) - 2/3
Answer
2
Ayan
Subject: Maths
, asked on 25/3/18
Solve this:
Q28. Milk in a container, which is in the form of a frustum of a cone of height 30 cm and the radii of whose lower and upper circular ends are 20 cm and 40 cm respectively, is to be distributed in a camp for flood victims. If this milk is available at eh rate of Rs.35 per litre and 880 litres of milk is needed daily for a camp, find how many such containers of milk are needed for a camp and what cost will it put on the donor agency for this. What value is indicated through this by the donor agency ?
Q29. Prove that "In a triangle, if the square of one side is equal to the sum of the squares of the other two sides, then the angle opposite to the first side is a right angle.
OR
Prove that "The ratio of the areas of two similar triangles is equal to the square of the ratio of their corresponding sides."
Q30. If the median of the distribution below is 28.5, find the values of x and y.
C.I.
0–10
10-20
20-30
30-40
40-50
50-60
Total
F
5
x
20
15
y
5
100
Answer
1
Ayan
Subject: Maths
, asked on 25/3/18
sir plz explain
Answer
1
Amit Rana
Subject: Maths
, asked on 25/3/18
Prove this question sir
Answer
2
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What are you looking for?
Q.
Q.12. If , then prove that
(i) Sin
(ii)Cos
(iii)Tan
???
Q.6. If prove that each of the side is equal to .
Q). Prove that:
Q).
Q.3. Prove that
(Ans : 1 and -1).
I came to know that graph for sin theta is up and down to x - axis and repeats after 180 degree in 11th std book. But please can you explain this answer?
Q28. Milk in a container, which is in the form of a frustum of a cone of height 30 cm and the radii of whose lower and upper circular ends are 20 cm and 40 cm respectively, is to be distributed in a camp for flood victims. If this milk is available at eh rate of Rs.35 per litre and 880 litres of milk is needed daily for a camp, find how many such containers of milk are needed for a camp and what cost will it put on the donor agency for this. What value is indicated through this by the donor agency ?
Q29. Prove that "In a triangle, if the square of one side is equal to the sum of the squares of the other two sides, then the angle opposite to the first side is a right angle.
OR
Prove that "The ratio of the areas of two similar triangles is equal to the square of the ratio of their corresponding sides."
Q30. If the median of the distribution below is 28.5, find the values of x and y.