Fsc Part 1 Mathematics (Complete Solution)
Q4
Prove the following rules of addition
(i) |
|
+ |
|
= |
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SOLUTION:
L.H.S | = |
|
+ |
|
= |
|
+ |
|
= |
|
(Right dist. property)
= |
|
= R.H.S
(ii) |
|
+ |
|
= |
|
SOLUTION:
L.H.S | = |
|
+ |
|
= | 1 x |
|
+ | 1 x |
|
= | ( | d x |
|
) | x |
|
+ | ( | b x |
|
) | x |
|
= | ad x |
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+ | bc x |
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= | (ad + bc) x |
|
= |
|
= R.H.S