KVPY Stream-SA (Class 11) Math: Questions 204 - 207 of 251

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 251 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 200.00 or

Question number: 204

» Trigonometry » Trigonometric Identities and Equations

MCQ▾

Question

In triangle ABC, value of secB[cosAcosCsinAsinC] is –

Choices

Choice (4) Response
a.

Sin B

b.

1

c.

Cos B

d.

-1

Question number: 205

» Sets, Relations and Functions » Types of Relations

MCQ▾

Question

Which of the following statements are true –

(i) If A={x:x2=9,xN},B={2}, then AB.

(ii) If A={2, 4,6, 8,8},B={6, 4,2, 8}, then A=B.

(iii) If A={x:x25x+11=0,xR},B=ϕ, then A=B.

(iv) If A={x: x <2,xZ},B={1, 1}, then A=B.

Select the correct option from given above:

Choices

Choice (4) Response
a.

(i) & (ii) are correct

b.

(i), (ii) & (iii) are correct

c.

(ii) & (iii) are correct

d.

(i) & (iv) are correct

Question number: 206

» Basic Mathematics » Geometry » Triangle and Properties

MCQ▾

Question

The number of values of a for which there is an isosceles triangle with sides of length a+7 , 2a1 and 5a is –

Choices

Choice (4) Response
a.

1

b.

0

c.

2

d.

3

Question number: 207

» Trigonometry » Heights and Distances

MCQ▾

Question

The angle of elevation of the top of a building from the foot of temple is 450 and the angle of elevation of the top of the temple from the foot of the building is 600. If the temple is 50 m high, then the height of the building is –

Choices

Choice (4) Response
a.

50

b.

503

c.

47

d.

350

Sign In