ECAT Mathematics Online Test With Answers

image
image
image

ECAT Mathematics Online Test

Sr. # Questions Answers Choice
1 Considering Cosine Rule of any triangle ABC, possible measures of angle A includes <span style="font-size: 0.95em;">Angle A is obtuse</span> <span style="font-size: 0.95em;">Angle A is acute</span> <span style="font-size: 0.95em;">Angle A is right-angle</span> <span style="font-size: 0.95em;">All of above</span>
2 In a triangle ABC, if angle A = 72° , angle B = 48° and c = 9 cm then Ĉ is <span style="font-size: 0.95em;">69°</span> <span style="font-size: 0.95em;">66°</span> 60° <span style="font-size: 0.95em;">63°</span>
3 For Cosine Rule of any triangle ABC, b2is equal to <span style="font-size: 0.95em;">a</span><sup>2</sup><span style="font-size: 0.95em;"></span><span style="font-size: 0.95em;">- c</span><sup>2</sup><span style="font-size: 0.95em;"></span><span style="font-size: 0.95em;">+ 2ab cos A</span> <span style="font-size: 0.95em;">a</span><sup>3</sup><span style="font-size: 0.95em;"></span><span style="font-size: 0.95em;">+ c</span><sup>3</sup><span style="font-size: 0.95em;"></span><span style="font-size: 0.95em;">- 3ab cos A</span> <span style="font-size: 0.95em;">a</span><sup>2</sup><span style="font-size: 0.95em;"></span><span style="font-size: 0.95em;">+ c</span><sup>2</sup><span style="font-size: 0.95em;"></span><span style="font-size: 0.95em;">- 2ac cos B</span> <span style="font-size: 0.95em;">a</span><sup>2</sup><span style="font-size: 0.95em;"></span><span style="font-size: 0.95em;">- c</span><sup>2</sup><span style="font-size: 0.95em;"></span><span style="font-size: 0.95em;">4bc cos A</span>
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26 0 -1 1/2 1
27
28
29
30
Download This Set
×