I am writing the answers only...If you want I will post the solutions (solved ) too....just post the comment and i will post the solved solutions of the question.
1)14 + 28 i
2)x = +- (sqrt(5))i
3) 3/13 + 2 i/13
4)x <= -3
5){x x belongs to Z and -3<x<0 }
6)(1,-1) (1,0) (-1,-1) (-1,0)
7) {a,c}
8) 1/ sqrt(2)
9)2
12) x=n pi + (-1)^n 7pi/8
13)sqrt(2)-1
14)Polynomial Function and function is f(x)=x^2 , x belongs to R
15)170
20)(-1+- i sqrt(7))/2sqrt(2)
21)2(cos 2 pi/3 + i sin 2 pi/3)
22) 0'
23) +/- (2+i)
24) 120<x<300
26) 3
27) i)Domain= {x -5<=x<=5 } Range = { x 0<=x<=5}
ii)Domain = R-{3} Range = R
If you want prove question's solutions too then post a comment
