Hello Somya
In the left side
There is AC - AD.
Since AD > AC
AC - AD will be negative
AC - AD = -DC
Now, in the right side
CB - DB will be DC
Written on Dec. 29, 2017, 10 a.m.
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sir 5.1, 5 question ..sir when we subtracting 1from tohow can come -DC
Davneet Singh
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