Question

Find the common difference ,If The nth term of an A.P. is given by an=2-3n​

Answer 1

Answer:

The common difference is -3

Step-by-step explanation:

I HAVE A SHORT TRICK FOR U

IF U ARE GIVEN NTH TERM IS EQUAL SUCH AND SUCH

IN YOUR CASE IS 2 -3N

THEN THE COMMON DIFFERENCE WILL BE THE POWER OF N MULTIPLY BY THE CONSTANT OF N

IN YOUR CASE IS. N¹ AND THE CONSTANT IS -3. SO COMMON DIFFERENCE IS. 1 × -3

WHICH IS -3