1. sinθ
2. cosθ
3. tanθ
4. cotθ
tanθ
1. (l2-m2)/(l2+m2)
2. (l2+m2)/(l2-m2)
3. 2lm/(l2+m2)
4. 2lm/(l2-m2)
(l2-m2)/(l2+m2)
1. 0
2. -1
3. 1
4. 1/2
1
1. R-{0}, R-{-1,1}
2. R-{-1,1}, R-{0}
3. R, R-{0}
4. R-{0},R
R-{0}, R-{-1,1}
1. π/6, π/3
2. π/6, π/4
3. π/4, π/3
4. π/4, π/2
π/6, π/3
1. 0
2. -1
3. 1
4. π /2
1
1. 1
2. 2
3. 3
4. √2
1
1. 4 unit
2. 3 unit
3. 6 unit
4. 5 unit
5 unit
1. 90
2. 105
3. 100
4. 120
100
1. a straight line
2. a circle
3. an ellipse
4. a parabola
a straight line