" (a) "(1)/(2)" of "(i)24" (ii) "46

Is the following relation a function ? Justify your answer: (i) R_(1) = {(2,3), ((1)/(2), 0), (2,7), (-4,6)} (ii) R_(2) = {(x,|x|): x" is a real number" )

Write all the factors of (i) 24 (ii) 36.

Find: frac{1}{2} of (a) 24 (b) 46

Find : 1/2 of 46

find the square roots of the following: (i) 7+24i (ii) 7-24i (iii) -7-24i (iv) -7+24i .

Find x and y if: (i) (x + 1,y-2) = (3,1) (ii) (x + 2,4)= (5,2x+y)

What percent of (i) 24 is 6? (ii) Rs 125 is Rs 10?