Question

Is the sequence 3,-3,3,...in AP? Justify

Answer 1

Answer:

• since A,.P=Tn=a+(n-1)d
• a=3,d=-3-(3)=-6. Let us n=4

Tn=3+(4-1)-6

Tn=-15

Answer 2

Answer:

No

Step-by-step explanation:

No they are not in Arithmetic Progression (AP) bcz the common difference (d) is not same everytime.

Common Difference (d) = a2 - a1

Common Difference (d) = -3-3

Common Difference (d) = -6

Common Difference (d) = a3 - a2

Common Difference (d) = 3-(-3)

Common Difference (d) = 3-3

Common Difference (d) = 0

Hope you understood

Thanks