Home
Class 11
MATHS
a, b, c, d in R^(+) such that a, b, care...

a, b, c, d `in R^(+)` such that a, b, care in A.P. and b, c, d are in H.P. then

A

ab=cd

B

ac = bd

C

bc = ad

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Similar Questions

Explore conceptually related problems

If a, b, c are in A.P. and b-a,c-b and a are in G.P., then a:b:c is

If a, b, c are in A.P, b, c, d are in G.P. and 1/c , 1/d,1/e are in A. P . Prove that a, c, e are in G.P.

If x,y, and z are in A.P ax , by and cz are in G.P. and a,b,c are in HP then prove that (x)/(z) +(z)/(x) = (a)/ (c )+(c )/(a)

Suppose that a, b, c are in A.P. Prove that 2b = a + c

If a, b, c, are in A. P, and (b−a), (c−b), a are in G.P, then a : b : c is

The determinant Delta=|(a,b,ax+b),(b,c,bx+c),(ax+b,bx+c,c)| is equal to zero, if a)a,b,c are in A.P. b)a,b,c are in G.P. c)a,b,c are in H.P. d) ax^(2) + bx + c = 0

If a,b,c are in A.P. b,c,d are in G.P. and 1/c,1/d,1/e are in A.P. prove that a,c,e are in G.P.

In a DeltaABC , if tan""(A)/(2)=(5)/(6),tan""(C )/(2)=(2)/(5) , then a)a, c, b are in AP b) a, b, c are in GP c)b, a, c are in AP d)a, b, c are in AP