A1=1 and an=-5an-1+2 then find the value of a3

9514 1404 393

  a3 = 17

Step-by-step explanation:

Substitute as needed and do the arithmetic.

  a1 = 1

  a2 = -5·a1 +2 = -5(1) +2 = -3

  a3 = -5·a2 +2 = -5(-3) +2 = 17

d) 30 units^2

area of rectangle = l × b

we know,

length = 10 unit

breadth = 3 unit

applying the formula,

= l × b

= 10 × 3

= 30 unit^2

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a is the correct