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## Bharat Gupta is teaching live on Unacademy Plus

Bharat Gupta

Engineer by degree Mathematician by Heart. Having 22 years of teaching experience.
More than 20000 students selected.

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(6)

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Khandakar Salam Ahmed

2 years ago

When will we get the assignment in Assamese language?

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Urvashi Jain

9 months ago

Sir you approach for the last question of the video is not at all correct. The concept applied is wrong. m saying this because 3^(4n+1) gives the unit digit to be 3,3^(4n+2) gives the unit digit to be 9 etc etc... for example 3^5 (5 can be written as 4n+1) gives 243 so the unit digit is 3 and so on...

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Rohan kumar

6 months ago

can u help me with the solution?

Prathista Ballal

a year ago

Sir why dint you consider 9 while considering 5 .

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SM

Shilp Mehta

a year ago

Sir, we did not understand how possible values of a came to 0, 1, 5, 6.

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KS

Kriti Singhal

2 months ago

sir why can A not be equal to 3, 7, 9?

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Prince kaushik

3 months ago

sir great awesome last question was awesome

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