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Riya Jeprish
Subject: Maths
, asked on 25/4/18
Q
10
.
I
n
r
e
c
tan
g
l
e
A
B
C
D
,
A
B
=
4
,
P
B
=
3
,
P
Q
=
15
4
t
h
e
n
f
i
n
d
D
Q
.
Answer
1
Riya Jeprish
Subject: Maths
, asked on 25/4/18
Q
10
.
I
n
r
e
c
tan
g
l
e
A
B
C
D
,
A
B
=
4
,
P
B
=
3
,
P
Q
=
15
4
t
h
e
n
f
i
n
d
D
Q
.
Answer
1
Riya Jeprish
Subject: Maths
, asked on 25/4/18
How to solve 11 Nd 12
Answer
1
Riya Jeprish
Subject: Maths
, asked on 25/4/18
Solve this question
Q).
sin
θ
cos
3
θ
-
cos
θ
sin
3
θ
=
1
8
if
θ
=
(A) 7.5
°
(B) 22.5
°
(C) 27.5
°
(D) 37.5
°
Answer
2
Aditya
Subject: Maths
, asked on 22/4/18
Find the value of sin17pi
Answer
5
Aditya
Subject: Maths
, asked on 22/4/18
Prove that
1. Tan3A tan2A tanA = tan3A -tan2A - tanA
2. Tan(A+B)/ cot(A-B) = sin2A -sin2B/ cos2A - sin2B
Answer
1
Aditya
Subject: Maths
, asked on 22/4/18
Prove that:
1. Cos 510 cos 330+ sin 390 cos 120= -1
2. Sin(-420) cos 390 + cos 390 + cos (-660) sin 330= -1
Answer
2
Aditya
Subject: Maths
, asked on 22/4/18
Sin theta+ cos theta= 0, theta lies in the 4th quad. , find sin theta and cos theta.
Answer
1
Ghosh Brothers
Subject: Maths
, asked on 18/4/18
Prove that (2√3 + √3)sinx + 2√3cosx lies between -(2√3 + √3) and (2√3 + √3) .
Answer
1
Ghosh Brothers
Subject: Maths
, asked on 18/4/18
Please prove it.
Q. Prove that :
2
3
+
3
sin
x
+
2
3
cos
x
lies between
-
2
3
+
3
a
n
d
2
3
+
3
Answer
1
Lavneesh Rajput
Subject: Maths
, asked on 18/4/18
Solve this:
Q.189. The radius of the incircle of a triangle whose sides are 18, 24 and 30 cm is
(a) 2 cms
(b) 4 cms
(c) 6 cms
(d) 9 cms
Answer
1
Dev Puri
Subject: Maths
, asked on 16/4/18
In the following question-
Q. Find the maximum and minimum value of 3sin
2
x - 2cos
2
x.
Answer
1
Dev Puri
Subject: Maths
, asked on 15/4/18
Q. Find the range of -
2-cos x +
sin
2
x
sin
2
x
sin
4
x
+
cos
4
x
+
1
Answer
1
Dev Puri
Subject: Maths
, asked on 14/4/18
Urgent!!pls solve this
Answer
1
Amitesh Kumar
Subject: Maths
, asked on 14/4/18
Plz fast
Answer
1
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What are you looking for?
Q). if
(A) 7.5
(B) 22.5
(C) 27.5
(D) 37.5
1. Tan3A tan2A tanA = tan3A -tan2A - tanA
2. Tan(A+B)/ cot(A-B) = sin2A -sin2B/ cos2A - sin2B
1. Cos 510 cos 330+ sin 390 cos 120= -1
2. Sin(-420) cos 390 + cos 390 + cos (-660) sin 330= -1
lies between
Q.189. The radius of the incircle of a triangle whose sides are 18, 24 and 30 cm is
(a) 2 cms
(b) 4 cms
(c) 6 cms
(d) 9 cms
Q. Find the maximum and minimum value of 3sin2 x - 2cos2 x.
Q. Find the range of -