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If a,b,c are in AP then 2b = …………....

If a,b,c are in AP then 2b = ………….

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Statement-1: The total number of ways in which three distinct numbers in AP, can be selected from the set {1,2,3, . .,21}, is equal to 100. Statement-2: If a,b,c are inn AP, then a+c=2b.

Statement-1: The total number of ways in which three distinct numbers in AP, can be selected from the set {1,2,3, . .,21}, is equal to 100. Statement-2: If a,b,c are inn AP, then a+c=2b.

Statement-1: The total number of ways in which three distinct numbers in AP, can be selected from the set {1,2,3, . .,21}, is equal to 100. Statement-2: If a,b,c are inn AP, then a+c=2b.

Statement-1: The total number of ways in which three distinct numbers in AP, can be selected from the set {1,2,3, . .,21}, is equal to 100. Statement-2: If a,b,c are inn AP, then a+c=2b.

Statement-1: The total number of ways in which three distinct numbers in AP, can be selected from the set {1,2,3, . .,21}, is equal to 100. Statement-2: If a,b,c are inn AP, then a+c=2b.

If a,b,c are in A.P., then a^2(b+c)+b^2(c+a)+c^2(a+b) is equal to

If a, b, c are in A.P. then show that 2b = a + c.

If a, b, and c are in A.P then (a + 2b -c) . ( 2b +c-a) . (c+a-b) = ............. .

"If the numbers "a,b,c" are in "A.P," then "2b=a+c" .If the numbers "a,b,c" are in G.P,then "b^(2)=ac" If "sin A,cos A,tan A" are in "GP" then "cot^(6)A-cot^(2)A=