Question

6. The value of (81)0.16 x (81)0.09 is
(a) 1
(b) 3
C 9
(d) 81.07
7. Ordinate of all points on the x - axis is
(a) 0
(b) 1
(C) -1
(d) any number
8. If p(x) = x3 – x2 + x + 1, then the value of p(-1) is​

Answer 1

6.b) 3

7.a) 0

8.

Given p(x) = x³-x²+x+1

so, p(1) = (1)³-(1)²+1+1 = 2.

and p(-1) = -1-1+1+1 = 0

therefore , p(1)+p(-1) = 2+0 = 2. and

{p(1)+p(-1)}/2 = 2/2 = 1.