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Byju's Answer
Standard X
Mathematics
Solving a Quadratic Equation by Completion of Squares Method
π 2 = 62 2 + ...
Question
π
2
=
62
2
+
(
π
−
3
)
2
find out.
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Solution
π
2
=
62
2
+
(
π
−
3
)
2
⇒
π
2
=
62
2
+
π
2
+
9
−
6
π
⇒
6
π
=
62
2
+
9
⇒
π
=
3853
6
=
642.166
.
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0
Similar questions
Q.
Find
α
and
β
, so that the function
f
(
x
)
defined by
f
(
x
)
=
−
2
sin
x
,
for
−
π
≤
x
≤
−
π
2
=
α
sin
x
+
β
,
for
−
π
2
<
x
<
π
2
=
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x
,
for
π
2
≤
x
≤
π
is continuous on
[
−
π
,
π
]
.
Q.
∫
1
0
t
a
n
−
1
x
1
+
x
2
d
x
=
Q.
If
[
x
]
stands greatest integer
≤
x
then the value of
∣
∣ ∣ ∣
∣
[
e
]
[
π
]
[
π
2
−
6
]
[
π
]
π
2
−
6
[
e
]
[
π
2
−
6
]
[
e
]
[
π
]
∣
∣ ∣ ∣
∣
equals
Q.
If [x] stands greatest integer
≤
x
then the value of
∣
∣ ∣ ∣
∣
[
e
]
[
π
]
[
π
2
−
6
]
[
π
]
[
π
2
−
6
]
[
e
]
[
π
2
−
6
]
[
e
]
[
π
]
∣
∣ ∣ ∣
∣
equals to=?
Q.
f
(
x
)
=
⎧
⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪
⎨
⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪
⎩
−
2
sin
x
,
−
π
≤
x
≤
−
π
2
a
cos
(
x
)
+
b
,
−
π
2
<
x
<
0
−
2
+
cos
x
,
0
≤
x
≤
π
2
c
sin
x
,
π
2
<
x
≤
π
⎫
⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪
⎬
⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪
⎭
is continuous in
[
−
π
,
π
]
,
then number of points at which
f
(
x
)
is not differentiable is/are
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