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Thought-Process to Discover Knowledge

Welcome to nubtrek.

Books and other education websites provide "matter-of-fact" knowledge. Instead, nubtrek provides a thought-process to discover knowledge.

In each of the topic, the outline of the thought-process, for that topic, is provided for learners and educators.

Read in the blogs more about the unique learning experience at nubtrek.

User Guide

Welcome to nubtrek.

The content is presented in small-focused learning units to enable you to
think,
figure-out, &
learn.

Just keep tapping (or clicking) on the content to continue in the trail and learn.

User Guide

To make best use of nubtrek, understand what is available.

nubtrek is designed to explain mathematics and science for young readers. Every topic consists of four sections.

nub,

trek,

jogger,

exercise.

User Guide

nub is the simple explanation of the concept.

This captures the small-core of concept in simple-plain English. The objective is to make the learner to think about.

User Guide

trek is the step by step exploration of the concept.

Trekking is bit hard, requiring one to sweat and exert. The benefits of taking the steps are awesome. In the trek, concepts are explained with exploratory questions and your thinking process is honed step by step.

User Guide

jogger provides the complete mathematical definition of the concepts.

This captures the essence of learning and helps one to review at a later point. The reference is available in pdf document too. This is designed to be viewed in a smart-phone screen.

User Guide

exercise provides practice problems to become fluent in the concepts.

This part does not have much content as of now. Over time, when resources are available, this section will have curated and exam-prep focused questions to test your knowledge.

summary of this topic

Voice

Voice

Home

»  additive identity of vector addition is 0.

plain and simple summary

nub

plain and simple summary

nub

dummy

•  null or zero vector - Additive Identity.

simple steps to build the foundation

trek

simple steps to build the foundation

trek

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What does 'identical' mean?

• same; similar; alike
• different; mismatch

The answer is 'same; similar; alike'

Consider the vector vec 0 = 0i+0j+0k. What will be the result of adding that with another vector vec a?

• -vec a
• |vec a|
• 0i+0j+0k
• same as vec a

The answer is 'same as vec a'. The sum is identical to the vector being added.

The vector vec 0 = 0i+0j+0k is also known as .....

comprehensive information for quick review

Jogger

comprehensive information for quick review

Jogger

dummy

Additive Identity: For any vector vec a in bbb V there exists a vec 0 in bbb V such that
vec a+vec 0=vec a

practice questions to master the knowledge

Exercise

practice questions to master the knowledge

Exercise

Consider vec p = 220i+310j-12i+15j. What will be the sum vec p + vec 0?

• vec p
• 503ij
• 232i+325j
• -208i-325j

The answer is 'vec p'

Progress

Progress

What does 'identical' mean?
same;similar;alike
same; similar; alike
different;mismatch
different; mismatch
The answer is 'same; similar; alike'
Consider the vector 0 = 0i+0j+0k. What will be the result of adding that with another vector a?
minus;-
minus vector a
modulus;mod
modulus of vector a
0;i;k;j
0i+0j+0k
same
same as vector a
The answer is "same as vector a". The sum is identical to the vector being added.
The vector 0 = 0i+0j+0k is also known as ...
null or zero vector - Additive Identity.
Additive Identity: For any vector a in vector space V, there exists a vector 0 in vector space V such that vector a + vector 0 = vector a.
Consider vector p = 220 i + 310 j minus 12i + 15 j. What will be the sum vector P plus vector 0?
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