the solution set of 2x+3y+5=0 and 4x+6y+10=0 is _______
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Answer:
answer is 0
LHS:2x+3y+5=0
5xy=-5(when 5 is transported to RHS the 5 becomes -5)
xy=0
and RHS:4x+6y+10=0
10xy=-10
xy=0
therefore,LHS=RHS
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Answer:
Number of Elements in Power Set –
As each element has two possibilities (present or absent}, possible subsets are 2×2×2.. n times = 2^n. Therefore, power set contains 2^n elements.
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