Solve Determinants In 5 Seconds | IIT-JEE Short Cuts & Tricks | GATE, CSIR-NET @gajendrapurohit

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Solve Determinants In 5 Seconds | IIT-JEE Short Cuts & Tricks | GATE, CSIR-NET | Score Quick Marks | By @Dr.Gajendra Purohit - GP Sir
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Time Stamp
An introduction - 0:00
Trick determinant of block diagonal matrix - 1:14
Trick determinant of upper triangular block matrix - 2:26
Trick determinant of lower triangular block matrix - 3:19
Trick determinant of block matrix - 4:23
Find Determinant (answer asked in Comment box for this video) - 5:31
Detailed about old videos - 5:53

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Dr.Gajendra Purohit

[rupankarchatterjee]

(-2)(-2) = 4 . Option ( a )
Solved in 5 seconds .

This short trick series of Matrix is very interesting. Thank you sir for the videos and for making Matrix problems easier for us.❣️

[viveksharma]

You are really amazing teacher.
That too we could get all knowledge for free. Great

[yannamallanagaraju]

Super short tricks sir 😀 thank u so much ❤️ last answer -2×-2=4

[divypandya_]

Less seconds to solve, more seconds to type the answer 😅
A is correct

[anmolgupta-bjce]

Ans is 4 within 5 sec and thank you sir for your inovative way of teaching 🙏🙏🙏

[jaideepmot]

A is the correct answer. I solve this problem within 20 seconds by using this trick.

[DEEPAK-tdqw]

Answer is option A i.e 4. I took just 3 seconds to solve with the help of the trick you taught.
Thanku sir.

[shivangityagi]

Det is 4 and able to solve this ques while you were telling about the Thanks to you sir

[sahilkashyap]

Answer =4 5Sec
Sir can you please make a video lecture on how to evaluate A^20 where A is a matrix(like problems)

[noshinsharmilytithi]

Thanks sir, I am so grateful to u.I'm a Bangladeshi student. I am solving previous question bank for Engineering admission and suddenly found the math, Thanks a lot sir. Now, i have a clear idea.❤

[sadbhavanarastogi]

Lot of thanks time to time knowledge ko increase krte ho ☺️

[yesishpatle]

Last question answer is option A ie.4. time taken 10 second by this trick.
Thank you sir

[mohitkrjain]

Using the formula for determinant of block diagonal matrix, we get det(M)=(-2)(-2)=4

[prahladmukherjee]

Sir ap jaise teacher pana kisi purbajonm ka achhe kam ka natiza hota hai.
You are Great sir

[sherazmalik]

How to check if CD= DC or not(without actually multiplying in both configurations)? Also, how to find the determinant if CD ≠ DC?

[subhadipbhowmik]

Thank you sir.. 💙💙 You are great 🙏🙏 Last question ans is 4 option A is right... This short tricks are very helpful to me.. And we want to learn lots of short stricks from you, Sir..💙💙🙏🙏

[spiritualcity]

A is correct answer, I solved this in only 4 sec...thank u sir

[sundusaqeel]

Great work by great teacher. Thank you sit

[rishibanerjee]

Ans opt-A -4 ... less than 5sec ...❤❤ Thank you sir very much.I am a physics hons student .Your videos really helping a lot for preparation in IIT jam ..Thank you very much sir.❤

[pujaguha]

Optn (a)4. 2 sec. Sir thank you very much .this tricks help a lot .thank you sir.