1
NDA 2018 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
What is the area of the triangle with vertices $$\left( {{x_1},{1 \over {{x_1}}}} \right),\left( {{x_2},{1 \over {{x_2}}}} \right),\left( {{x_3},{1 \over {{x_3}}}} \right)$$ ?
A
$$\left| {({x_1} - {x_2})({x_2} - {x_3})({x_3} - {x_1})} \right|$$
B
0
C
$$\left| {{{({x_1} - {x_2})({x_2} - {x_3})({x_3} - {x_1})} \over {{x_1}{x_2}{x_3}}}} \right|$$
D
$$\left| {{{({x_1} - {x_2})({x_2} - {x_3})({x_3} - {x_1})} \over {2{x_1}{x_2}{x_3}}}} \right|$$
2
NDA 2018 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
In a $$\Delta$$ABC, if a = 2, b = 3 and $$\sin A = {2 \over 3}$$, then what is $$\angle$$B equal to?
A
$${\pi \over 4}$$
B
$${\pi \over 2}$$
C
$${\pi \over 3}$$
D
$${\pi \over 6}$$
3
NDA 2019 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
If the angles of a triangle ABC are in AP and b : c = $${\sqrt 3 }$$ : $${\sqrt 2 }$$, then what is the measure of angle A ?
A
30$$^\circ$$
B
45$$^\circ$$
C
60$$^\circ$$
D
75$$^\circ$$
4
NDA 2019 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
If the angles of a triangle ABC are in the ratio 1 : 2 : 3, then the corresponding sides are in the ratio
A
1 : 2 : 3
B
3 : 2 : 1
C
1 : $$\sqrt 3 $$ : 2
D
1 : $$\sqrt 3 $$ : $$\sqrt 2 $$
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