Hakim Para, Siliguri, India - 734001.
4 yrs of Exp 
3
Details verified of Subhash Kumar✕
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English
Hindi Proficient
MIT Muzaffarpur 2007
Bachelor of Engineering (B.E.)
Hakim Para, Siliguri, India - 734001
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Class Location
Online Classes (Video Call via UrbanPro LIVE)
Student's Home
Tutor's Home
Years of Experience in Class 9 Tuition
4
Board
State, CBSE, ICSE
Subjects taught
Science, Mathematics
Taught in School or College
No
1 Student Class Location
Online Classes (Video Call via UrbanPro LIVE)
Student's Home
Tutor's Home
Years of Experience in Class 10 Tuition
4
Board
State, CBSE, ICSE
Subjects taught
Mathematics, Science
Taught in School or College
No
Class Location
Online Classes (Video Call via UrbanPro LIVE)
Student's Home
Tutor's Home
Years of Experience in Class 11 Tuition
5
Board
ISC/ICSE, State, CBSE
Subjects taught
Physics, Mathematics
Taught in School or College
No
Class Location
Online Classes (Video Call via UrbanPro LIVE)
Student's Home
Tutor's Home
Years of Experience in Class 12 Tuition
5
Board
ISC/ICSE, State, NIOS, CBSE
Subjects taught
Mathematics, Physics
Taught in School or College
No
Class Location
Online Classes (Video Call via UrbanPro LIVE)
Student's Home
Tutor's Home
Years of Experience in Engineering Diploma Tuition
4
Engineering Diploma Branch
Engineering Diploma 1st Year
Engineering Diploma Subject
Engineering Mathematics, Basic Math, Basic Physics
Type of class
Crash Course, Regular Classes
Class strength catered to
One on one/ Private Tutions, Group Classes
Taught in School or College
No
Upcoming Live Classes
5 out of 5 1 review
Pushkar Dutt
"Best teaching, easy to understand, friendly behaviour, best for the students who are appearing for boards or IIT JEE. Highly recommended "
1. Which school boards of Class 10 do you teach for?
State, CBSE, ICSE
2. Do you have any prior teaching experience?
No
3. Which classes do you teach?
I teach Class 10 Tuition, Class 11 Tuition, Class 12 Tuition, Class 9 Tuition and Engineering Diploma Tuition Classes.
4. Do you provide a demo class?
Yes, I provide a free demo class.
5. How many years of experience do you have?
I have been teaching for 4 years.
Answered on 12/05/2020 Learn CBSE - Class 11/Science/Mathematics/Unit-II: Algebra/Complex Numbers and Quadratic Equations/NCERT Solutions/Miscellaneous Exercise 5
Let
Z1= cosA + i sinA where Re(Z1) = cosA & Im(Z1) = sinA
Z2= cosB + i sinB where Re(Z2) = cosB & Im(Z2) = sinB
Z1*Z2=(cosA + i sinA)*(cosB + i sinB)=cosA*cosB+cosA* (i sinB)+(i sinA)* cosB+(i sinA)*(i sinB)
= cosA*cosB + i (cosA*sinB + sinA*cosB) +(-1) sinA*sinB
= (cosA*cosB - sinA*sinB) + i (cosA*sinB + sinA*cosB)
Hence,
Re ( Z1*Z2) = (cosA*cosB - sinA*sinB) = Re(Z1) *Re(Z2) - Im(Z1) *Im(Z2)
Answered on 24/04/2017 Learn Tuition/Class XI-XII Tuition (PUC)
Answered on 24/04/2017 Learn Tuition/Class XI-XII Tuition (PUC)
Answered on 24/04/2017 Learn Tuition/Class XI-XII Tuition (PUC)
Class Location
Online Classes (Video Call via UrbanPro LIVE)
Student's Home
Tutor's Home
Years of Experience in Class 9 Tuition
4
Board
State, CBSE, ICSE
Subjects taught
Science, Mathematics
Taught in School or College
No
1 Student Class Location
Online Classes (Video Call via UrbanPro LIVE)
Student's Home
Tutor's Home
Years of Experience in Class 10 Tuition
4
Board
State, CBSE, ICSE
Subjects taught
Mathematics, Science
Taught in School or College
No
Class Location
Online Classes (Video Call via UrbanPro LIVE)
Student's Home
Tutor's Home
Years of Experience in Class 11 Tuition
5
Board
ISC/ICSE, State, CBSE
Subjects taught
Physics, Mathematics
Taught in School or College
No
Class Location
Online Classes (Video Call via UrbanPro LIVE)
Student's Home
Tutor's Home
Years of Experience in Class 12 Tuition
5
Board
ISC/ICSE, State, NIOS, CBSE
Subjects taught
Mathematics, Physics
Taught in School or College
No
Class Location
Online Classes (Video Call via UrbanPro LIVE)
Student's Home
Tutor's Home
Years of Experience in Engineering Diploma Tuition
4
Engineering Diploma Branch
Engineering Diploma 1st Year
Engineering Diploma Subject
Engineering Mathematics, Basic Math, Basic Physics
Type of class
Crash Course, Regular Classes
Class strength catered to
One on one/ Private Tutions, Group Classes
Taught in School or College
No
5 out of 5 1 review
Pushkar Dutt
"Best teaching, easy to understand, friendly behaviour, best for the students who are appearing for boards or IIT JEE. Highly recommended "
Answered on 12/05/2020 Learn CBSE - Class 11/Science/Mathematics/Unit-II: Algebra/Complex Numbers and Quadratic Equations/NCERT Solutions/Miscellaneous Exercise 5
Let
Z1= cosA + i sinA where Re(Z1) = cosA & Im(Z1) = sinA
Z2= cosB + i sinB where Re(Z2) = cosB & Im(Z2) = sinB
Z1*Z2=(cosA + i sinA)*(cosB + i sinB)=cosA*cosB+cosA* (i sinB)+(i sinA)* cosB+(i sinA)*(i sinB)
= cosA*cosB + i (cosA*sinB + sinA*cosB) +(-1) sinA*sinB
= (cosA*cosB - sinA*sinB) + i (cosA*sinB + sinA*cosB)
Hence,
Re ( Z1*Z2) = (cosA*cosB - sinA*sinB) = Re(Z1) *Re(Z2) - Im(Z1) *Im(Z2)
Answered on 24/04/2017 Learn Tuition/Class XI-XII Tuition (PUC)
Answered on 24/04/2017 Learn Tuition/Class XI-XII Tuition (PUC)
Answered on 24/04/2017 Learn Tuition/Class XI-XII Tuition (PUC)
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Hakim Para, Siliguri 
