Question

Determine weother given volves is a zero of the given polynomial
$i) x³+3x+2, x=1 \\ \ \textless \ br /\ \textgreater \ ii) x⁴-4x³+6x²-4x+1, x=1 \\ \ \textless \ br /\ \textgreater \ iii) p(x)=2x+1, x=½$
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Answer 1

Answer:

2) If sets A and B are defined as, A ) = {(x,y)/y = 1/x,0 #x € R} & B = {(x,y)/y = -x,x € R} then a) AnB = A b) An B = B c) An B = 0 d) AU B = A

Answer 2

Step-by-step explanation:

We have,

Diameter of cylinder = 7 cm

So, Radius of cylinder = 7/2 cm

Height of cylinder = 60 cm

By using the formula,

Curved surface area of cylinder = 2πrh

= 2 × 22/7 × 7/2 × 60

= 1320 cm2

Total surface area of cylinder = 2πr (h+r)

= 2 × 22/7 × 7/2 (60 + 7/2)

= 22 (127/2)

= 1397 cm2