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Tanaya
Subject: Maths
, asked on 26/2/18
Q.15. Find the value of
cos
-
1
1
-
x
1
+
x
+
cos
e
c
-
1
1
+
x
1
-
x
Answer
1
Vibhav
Subject: Maths
, asked on 24/2/18
if cos-1x+cos-1y+cos-1z=pi and x+y+z=3/2 prove that x=y=z
Please give me a proper method of solving this question, DONT assume x=y=z and then solve
Properly solve using the given conditions and NOT the other way round
Please answer this question, this is the 4th time I am asking
Answer
1
Vibhav
Subject: Maths
, asked on 23/2/18
if cos-1x+cos-1y+cos-1z=pi and x+y+z=3/2 prove that x=y=z
Please give me a proper method of solving this question, DONT assume x=y=z and then solve
Properly solve using the given conditions and NOT the other way round
Please answer this question, this is the 4th time I am asking
Answer
1
Vibhav
Subject: Maths
, asked on 19/2/18
Please solve Q12
Answer
1
Afrah Baber Khan
Subject: Maths
, asked on 19/2/18
If y = tan
-1
x, show that (1+x
2
)y" + 2xy'=0
Answer
1
Vibhav
Subject: Maths
, asked on 18/2/18
how to solve Q10, Q12 (OR Part) and Q14
Answer
1
Vibhav
Subject: Maths
, asked on 13/2/18
If cos-1x+cos-1y+cos-1z=pi and x+y+z=3/2, prove that x=y=z. Please help....urgent.
Answer
1
Aryan
Subject: Maths
, asked on 10/2/18
If cos(a+b) = 4/5, sin(a-b) = 5/13 & a,b lie between 0 and pi/4, find tan 2a.
Answer
1
Abhishek
Subject: Maths
, asked on 8/2/18
Solve this :
Show
that
:
cos
-
1
2
3
-
cos
-
1
6
+
1
2
3
=
π
6
.
Answer
1
Archana
Subject: Maths
, asked on 6/2/18
Can we use this formula
cos
-1
x+cos
-1
y= cos
-1
(xy- (root of 1-x
2
) (root of 1-y
2
) )
in sums directly.. since this formula is not there in book.. can i use this formula in board exam?
Answer
1
Chaitanya Kapoor
Subject: Maths
, asked on 3/2/18
Solve
Q.8. Evaluate:
sin
-
1
cos
π
9
Answer
1
Chaitanya Kapoor
Subject: Maths
, asked on 3/2/18
Solve
Q. Evaluate:
tan
1
2
cos
-
1
5
3
Answer
1
Guna Shekar
Subject: Maths
, asked on 30/1/18
Q.66 If a = cos(sin x) and b = sin (cos x ) then a holds for (1) Every real number x (b) No real number x (3)
x
∈
[
-
π
/
2
,
sin
-1
π
/
4
] (4)
x
∈
[
-
π
/
2
,
sin
-1
π
/
4
)
Answer
1
Akansha Karvekar
Subject: Maths
, asked on 26/1/18
Is this solution correct ?
If not pls answer correct
Q
e
tanx
+
logx
tanx
=
y
dy
dx
=
d
dx
e
tanx
+
d
dx
logx
tanx
=
e
tanx
.
d
dx
tanx
+
d
dx
tanx
.
logx
=
e
tanx
.
sec
2
x
+
tanx
.
1
x
+
logx
.
sec
2
x
=
e
tanx
.
sec
2
x
+
tanx
x
+
logx
.
sec
2
x
=
tanx
x
+
e
tanx
+
logx
sec
2
x
Answer
1
Raghav Soni
Subject: Maths
, asked on 25/1/18
Q). Find the value of x such that
3
tan
-
1
1
2
+
3
-
tan
-
1
1
x
=
tan
-
1
1
3
Answer
4
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What are you looking for?
Please give me a proper method of solving this question, DONT assume x=y=z and then solve
Properly solve using the given conditions and NOT the other way round
Please answer this question, this is the 4th time I am asking
Please give me a proper method of solving this question, DONT assume x=y=z and then solve
Properly solve using the given conditions and NOT the other way round
Please answer this question, this is the 4th time I am asking
Q.8. Evaluate:
Q. Evaluate:
If not pls answer correct