Question

show that, limit (x,y) tends to (0,0) {1/|x| + 1/|y| } = infinity.( function of several variables)​

Answer 1

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.