The area of the BOP is half the area of the AOP

The image of the quadratic function y=-x 2+bx+c has only one intersection point p with the x-axis, and the point p is on the positive semi-axis of the x-axis.

Over P do PE vertical OA to E PF vertical ob to F

Because the area of OPA = OA*PE2

Area of OPB = ob*pf 2

Because the area of the OPA = the area of the OPB.

oa=ob, so pe=pf

Because op=op

So rt peo is all equal to rt pfo(hl), so aop = bop

Over p do pd oa in d, pe ob in e, s opa = 1 2·oa·pds opb=1 2·ob·pe

OA=OB, and OPA is equal to OPB area.

PD=PEOP bisects AOB

i.e. aop= bop

oa=obop=op

s = under the root number (p(p-a)(p-b)(p-c))p=(a+b+c) 2

ap=bp--> Quan Hezai, etc.

What Zen is burning Wang Duan, the hunger is equal.

Because the area of OPA is equal to OA multiplied by the height of P to OA multiplied by 1 2, the area of OPB is equal to OB multiplied by the height of P to OB multiplied by 1 2, because OA = OB and the height is equal to OP multiplied by SIN AOP and SIN BOP respectively, because the area of the two triangles is equal, so SIN AOP = SIN BOP, so AOP = BOP

Over p do pd oa in d, pe ob in e, s opa = 1 2·oa·pd

s⊿opb=1／2·ob·pe

OA=OB, and OPA is equal to OPB area PD=PE

OP divides the AOB equally

i.e. aop= bop

Over P do PE perpendicular OA over E PF perpendicular ob over F because the area of OPA = OA * PE 2

Area of OPB = ob*pf 2

Because the area of the OPA = the area of the OPB.

oa=ob, so pe=pf

Because op=op

So rt peo is all equal to rt pfo(hl), so aop = bop

The BOP panel has only seven 5-digit displays, which can display the serial number and value of the parameter, alarm and fault information, as well as the actual value and set value.