Find and correct the errors in the following mathematical statements.
Q.1.
Sol. Given,
LHS =
=
≠RHS
Correct statement:
Q.2.
Sol. Given,
LHS =
=
≠RHS
Correct statement:
Q.3.
Sol. Given,
LHS =
≠RHS
Correct statement:
Q.4.
Sol. Given,
LHS =
=
≠RHS
Correct statement:
Q.5
Sol. Given,
LHS =
=
=
≠RHS
Correct statement:
Q.6
Sol. Given,
LHS =
=
≠RHS
Correct statement:
Q.7
Sol. Given,
LHS =
=
≠RHS
Correct statement:
Q.8
Sol. Given,
LHS =
=
≠RHS
Correct statement:
Q.9
Sol. Given,
LHS =
=
≠RHS
Correct statement:
Q.10 Substituting in
(a) gives
(b) gives
(c) gives
Sol. (a) gives
LHS =
Substituting , we get,
=
=
=
≠RHS
Correct statement: gives
(b) gives
LHS =
Substituting , we get,
=
=
=
≠RHS
Correct statement: gives
(c) gives
LHS =
Substituting , we get,
=
=
=
≠RHS
Correct statement: gives
Q.11
Sol. LHS =
=
≠RHS
Correct statement:
Q.12
Sol. LHS =
=
≠RHS
Correct statement:
Q.13
Sol. LHS =
=
=
≠RHS
Correct statement:
Q.14
Sol. LHS =
=
=
≠RHS
Correct statement:
Q.15
Sol. LHS =
=
=
≠RHS
Correct statement:
Q.16
Sol. LHS =
=
≠RHS
Correct statement:
Q.17
Sol. LHS =
=
=
≠RHS
Correct statement:
Q.18
Sol. LHS =
≠RHS
Correct statement:
Q.19
Sol. LHS =
≠RHS
Correct statement:
Q.20
Sol. LHS =
=
=
≠RHS
Correct statement:
Q.21
Sol. LHS =
=
=
≠RHS
Correct statement:
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