Vectors Orthogonal Perpendicular Math
If the vectors are orthogonal or perpendicular then their dot product is Zero so……
(2i-3j+4k).(3i-5j-3ak)=0
6+15-12a=0
21-12a=0
-12a=-21
12a=21
a=21/12
a=7/4
Vectors Orthogonal Perpendicular Math
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Countable set has bijection, if there is no bijection than it will be called as uncountable set. In addition to a set with greater cardinality is Uncountable set.
In contrast if it is finite or countably infinite it will be countable.
Countable set v/s Uncountable sets
Countable Sets:The Countable sets Can be listed in a sequence (e.g., 1, 2, 3, …)The sets which are correspondence with the natural numbers are countable sets.The countable infinity
For Examples:(1).Natural numbers(2).Integers
Uncountable Sets:Uncountable sets are listed in a sequence comparatively to countable sets it Cannot be put into a one-to-one correspondence with the natural numbers.
The uncountable infinity
Countable v/s Uncountable sets-Matrices
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