48 - Calculus Questions Answers

Plzz solve for even and odd values both during intermediate of answer steps 🙏🙏🙏
Asked By: ASHLOK
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How to do it with calculus?
Asked By: LUFFY
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Joshi sir comment

length for one turn = 3

Draw diagonal of a rectangle then turn it as a cylinder, you will get the construction given in the question.

In triangle l = 32+n2 So total length of wire having n turn = n32+n2 Compare with 20 and solve

 

Can it be solved by finding area ?
Asked By: LUFFY
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Joshi sir comment
Sir pls solve
Asked By: KANDUKURI ASHISH
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Joshi sir comment

The general solution of this kind of  differential eq. is y = eax Let a function g(x) = eaxf(x)    (1) differentiate eq. (1) thrice for getting g,,,(x) now for getting the same function as given  find a. you get the same function for  a = 1/2. clearly, for min 5 zeros of g(x), there are min 2 zeros for g,,,(x).  solve and inform if face any problem.

Plzz help me to solve this question ☺️☺️☺️
Asked By: ASHLOK
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Joshi sir comment

Find 

lim n→∞  ⁿ√(n!) / n

Asked By: LUFFY
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Joshi sir comment

1 . Iₙ = ∫ ( 1/ ( x² + a²)ⁿ  )dx

 

How to do this by substituting x = a tan Α

 

2.  Is this true 

    ∫ f(x) d(kg(x)) = k ∫ f(x) d(g(x))

    where k is a constant

 

Asked By: LUFFY
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Solution by Joshi sir

d/dx((1+x^2+x^4)/(1+x+x^2))=ax+b

then a=?, b=?

Asked By: RAJIV
is this question helpfull: 21 9 read solutions ( 2 ) | submit your answer
Joshi sir comment

1+x2+x4 = (1+x+x2)(1-x+x2)

now solve

Maths >> Calculus >> Functions IIT JEE

Find a formula for a function g(x) satisfying the following conditions

a) domain of g is (-∞ , ∞ )     b) range of g is [-2 , 8]     c)  g has a period π   d)  g(2) = 3

Asked By: VAIBHAV GUPTA
is this question helpfull: 6 0 read solutions ( 1 ) | submit your answer
Joshi sir comment

g(x) = 3-5sin(2x-4)

 

Maths >> Calculus >> Functions IIT JEE

Let f(x) = x135 + x125 - x115 + x5 +1. If f(x) is divided by x3-x then the remainder is some function of x say g(x). Find the value of g(10)

Asked By: VAIBHAV GUPTA
is this question helpfull: 7 6 submit your answer
Joshi sir comment

for getting reminder put x3= x so

x135 + x125 - x115 + x5 +1 will give

 x45 + x41*x2 - x38*x +x*x2 +1

x15 + x13*x2*x2 - x12*x2*x +x*x2 +1

 x17 + x3 +1

x5*x2 + x + 1

x+ x + 1

x2*x + x +1 

x3 + x +1 

x+x+1

2x+1

now put x = 10

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