Std 10th ganit

8th , 9th and 10th pair of ribs

If coefficient of 9th, 10th and 11th terms of (1+x)^(n) are in A.P., then the value of n can be

Assertion:The 8th , 9th and 10th pairs of ribs are false ribs Reason:They are attached to the lumbar vertebrae dorsally

If the 4th, 10th and 16 th terms of a G.P. are x, y and z, respectively. Prove that x,y,z are G.P.

If the 4th, 10th and 16th terms of a GP are x, y, z respectively, prove that x, y, z are in GP.