134 - Mathematics Questions Answers

There are 8 distinct boxes and each box can hold any number of balls.A child having 4 identical balls tandomly choosen four boxes.Then another child having four balls,identical to the previous mentioned,again puts one ball in each of the arbitary choosen four boxes.The probability that there are balls in atleast 6 boxes is

 

Sir pls solve

Asked By: KANDUKURI ASHISH
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Asked By: UTTAM RAJ
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Between two numbers, whose sum is 13/6, an even number of arithmetic means are inserted, the sum of these means exceed their number by unity. How many means are there?

Asked By: PREM
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If 9a+24b=1, a,b, +, prove that a2+b2 9( 4+93)3.

Asked By: JAMES GHOSH
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Plzz solve for even and odd values both during intermediate of answer steps 🙏🙏🙏
Asked By: ASHLOK
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The expression ax2 + 2bx + b has same sign as that of b for every real x, then the roots of equation bx2 + (b – c) x + b – c – a = 0 are (A) real and equal (B) real and unequal (C) imaginary (D) None of these
Asked By: PREM
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If a,b and c are positive real numbers, show that

ab+c+bc+a+ca+b32

Asked By: MROY
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How to do it without using cauchy schwartz inequality?
Asked By: LUFFY
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Asked By: LUFFY
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Let the lines in the pair are m1x-y=0 and m2x-y=0 Find perpendiculars from (x,,y,) on lines and calculate their sum Use formulae m1+m2 = -2hb and m1m2= ab Inform for any issue

 

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

 

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