Question

please, solve this question​

Answer 1

Answer:

Answer is -682 check kar lo right answer hai n

Answer 2

Answer:

Hence, the right answer is a30-a20=(-203)

Step-by-step explanation:

Given, a=-5 d=-9-(-5)=-9+5=-4

We know,

an=a+(n-1)d

Then,

a30=-5+(30-1)(-4)

=-5+(29)(-4)

a30=-122

Also,

a20=-5+(20-1)(-4)

=-5+(19)(-4)

a20=-81

Hence,

a30-a20=(-122)+(-81)

=-203