Show that the progression -11,-7,-3,1,5,…, 161 is an AP. How many tems does it have ?

How many Ohms does 1MOmega have

Show that the progression 21,16,11,6,1,…, is an AP. Write its first term and the common difference. Which term of this AP is -54?

Show that the progression 11, 6, 1, -4, -9, …. is an AP. Find its first term and the common difference.

Show that the progression 8, 11, 14, 17, 20, … is an AP. Find its first term and the common difference.

Show that the progression 7,12,17,22,27, …., is an AP. Find its general term and the 14th term.

Show that each of the progressions given is an AP. Find the first term , common difference and next term of given series (ii) 11 ,6, 1 ,-4 . . .

How many 7's are needed to get 161?

Show that the points (5,-1,1),(7,-4,7),(1,-6,10) and (-1,-3,4) are the vertices of a rhombus.

If A={1,3,5},how many elements have P(A)?