CBSE Class 11-science - Arithmetic Mean Videos

• please answer
  
• 1. Sum of 10 A.M's between 3,10 is..? 2.if (4x+4)/3, 2x+2,3x+3 are in G.P then 4th Term is.. 3.which term of 2-1/root2 +1/4 so on .. is 1/32. 4.sum to n terms of 3.5+4.7+5.9+ so on..
• 9th sum
  
• Define arithmetic mean for an A.P. a, b, c.
• If A₁, A₂, A₃, …, A_n are n arithmetic means between a and b. Find the common difference between the terms.
• Find the arithmetic mean between .
• Find the number of arithmetic means between 7 and 71 in such a way that 5^th mean is 27.
• Insert 6 numbers between – 6 and 29 such that the resulting sequence is an A.P.
• Between 1 and 31, n numbers have been inserted in such a way that the resulting sequence is an A. P. and the ratio of 7th and (n – 1)^th numbers is 5 : 9. Find the value of n.
• If x, y, z are in A.P. A₁ is the mean of x & y and A₂ is the mean of y & z. Then prove that the mean of A₁ and A₂ is y.

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