Question

pls answer this question ​

Answer 1

Answer:

5)x-1=0-->x=1

p(x)=0

kx²-(√2)x+1=0

k(1)²-(√2)(1)+1=0

k-(√2)+1=0

k=(√2)-1

6)Let the angles be x.

<A=x, <B=2x, <C=3x, <D=4x

x+2x+3x+4x=180°(angle sum property)

10x=180°

x=180°/10

x=18°

<A=x=18°, <B=2x=2(18)=36°, <C=3x=3(18)=54°, <D=4x=4(18)=72°