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Official Class XI Preparation

(215 Posts)

This thread is dedicated to preparation for Class XI exams. You may share questions from any of the subjects like Mathematics, Science, Accountancy, Business Studies etc.

Question should not exceed 100 characters.Use add options for multiple choice questions and "Uploadimage/Add related data" for passage text papers.
Question should be at least 10 characters long.
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Jam Pavy
Shared from Quadratic Equations - 3 on 25 Aug, 2019 1:02 PM

If a is a root of the equation x2 + x + 1 = 0, the value of a703 + a68 + a375 is

 
0
1
- 1
2
Please type your answer before submitting.

Why we have taken w and w^2 as the roots?

Prerna Garg
Shared from The Living World (cbse class 11) on 23 Jun, 2019 11:47 AM

Given below are the four steps for naming an organism .Identify the correct sequence.
1. Characterisation
2. Classification
3. Identification
4. Nomenclature

 
1-2-3-4
1-3-4-2
4-3-2-1
3-4-2-1
Please type your answer before submitting.

Sir esme confusion h

Tarun Sharma
Shared from Complex Numbers (Foundation) on 26 Jan, 2019 3:16 AM

Which of the following is not defined in the case of complex numbers? Given, a is any complex number and z1 = z2.

 
z1 + a = z2 + a
z1 + 2a > z2 + a
z1 + 5a z2 + 5a
None of these
Please type your answer before submitting.

Which of the following is not defined in the case of complex numbers? Given, a is any complex number and z1 = z2.

Ramesh Chandra Arora
Posted on 29 Dec, 2018 10:14 PM

Solve 8 sin^3 x - 7 sin x + sqrt(3) cos x = 0 . This is a question of Mathematics class XI - Trigonometry.

Please type your answer before submitting.

Rtv k

Mani Sunkara
Shared from Limits and Derivatives - 1 on 11 Dec, 2018 5:15 PM

is equal to

 
1
- 1
Please type your answer before submitting.

Answer is 0 as sin 0/1+cos 0 = 0/2=0