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# Tutor profile: Dhriti R.

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Dhriti R.
Teaching assistant for maths for a year
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## Questions

### Subject:R Programming

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Question:

How to input a sequence of numbers without entering them manually?

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Dhriti R.

x = seq(from=0, to =100, by=1) Ouput x = [ 0 1 2 3 4 5 6 .............100]

### Subject:Calculus

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Question:

How to minimize the perimeter of a rectangle when the area is constant? Let area = 225

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Dhriti R.

Perimeter is equal to x+y+x+y = 2(x+y) where x and y are the sides GIven xy = 225, this implies y = 225/x perimeter = 2(x+y) = 2(x+225/x) To minimize this we need to differentiate and equate to 0 ==> 2( 1 - 225/\$\$x^2\$\$) = 0 ==> \$\$x^2\$\$ = 225 ==> x = 15 ==> y = 225/x = 15 perimeter = 2(15+15) = 60

### Subject:Electrical Engineering

TutorMe
Question:

Convert 1100 0010 to hex

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Dhriti R.

While converting from binary to hex one should combine 4 digits starting from the LSB In this case, 1100 = 8 + 4 + 0 + 0 = 12 = C 0010= 0+ 0+ 2 + 0 = 2 1100 0010 = C2 in hex

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