There are ways of building a subset of
elements from
, so the total number of subsets you can build is
Recalling the binomial theorem, the above sum is equal to
as required.
What is 16+4x less than or equal to 40
2 answers:
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Answer:
Just find sin^2theta and change them with the help of known identities.
You can also use Pythagoras theorm. It will work..
Hope it helps
