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Byju's Answer
Standard XII
Chemistry
Heat Capacity
Use a number ...
Question
Use a number line to evaluate each of the following :
(ii)
0
+
(
+
6
)
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Solution
Evaluate the sum using number line.
Given
=
0
+
(
+
6
)
⇒
No movement for
0
and move
6
units to the right of zero for
(
+
6
)
.
∴
0
+
(
+
6
)
=
(
+
6
)
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2
Similar questions
Q.
Evaluate each of the following using identities :
i)
(
399
)
2
ii)
(
0.98
)
2
iii)
991
×
1009
Q.
For any positive real number 'a', the following results hold.
(i)
|
x
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≤
a
⇒
−
a
≤
x
≤
a
(ii)
|
x
|
≥
a
⇒
x
≥
a
or
x
≤
−
a
.
Using the above identities, evaluate the following.
∣
∣
∣
4
m
−
8
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∣
∣
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≤
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Q.
For any positive real number 'a', the following results hold.
(i)
|
x
|
≤
a
⇒
−
a
≤
x
≤
a
(ii)
|
x
|
≥
a
⇒
x
≥
a
or
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≤
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Using the above indentities, evaluate the following:
∣
∣
∣
4
m
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Q.
Evaluate each of the following :
(i)
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(iii)
6
P
6
(iv) P(6,4)
Q.
Question 6(ii)
Using identities, evaluate:
99
2
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Heat Capacity
Standard XII Chemistry
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