Answer:
a₁ = -21 (Given)
a₂ = -28
a₃ = -35
a₄ = -42
Step-by-step explanation:
First term a₁ = -21 (Given)
…………………………………
Second term a₂ :
a₂ =
…………………………………
Third term a₃ :
a₃ =
…………………………………
Fourth term a₄ :
a₄ =
28% equals 28/100. So, 28% equals 28 per 100.
Length = √area = √81 = 9
diagonal = √2 * side = √2*9 = 9√2