1. 20 m
2. 30 m
3. 40 m
4. 60 m
20 m
1. a2 (e4Sec2θ + 1)
2. a2 (e4Sec2θ – 1)
3. b2 (e4Sec2θ + 1)
4. b2 (e4Sec2θ – 1)
a2 (e4Sec2θ – 1)
1. 300
2. 450
3. 900
4. 1200
1200
1. x2 + x + 1=0
2. x2 - x + 1=0
3. x2 +c x + ab=0
4. x2 - c x + ab=0
x2 +c x + ab=0
1. 1/3
2. 4/3
3. 5/3
4. 2/3
2/3
1. 27
2. 26
3. 25
4. 24
25
1. x + 5y + 5=0
2. x + 5y ± √2 = 0
3. x + 5y ± √5 = 0
4. x + 5y ± 5√2 = 0
x + 5y ± 5√2 = 0
1. 2√7
2. √7
3. 4√7
4. 8√7
2√7
1. 2√7
2. √7
3. 4√7
4. 8√7
2√7
1. xyy2 + xy12 + yy1=0
2. xyy2 - xy12 + yy1=0
3. xyy2 + xy12 - yy1=0
4. xyy2 - xy12 - yy1=0
xyy2 + xy12 - yy1=0