Question

8. If P = {x:x<5 and x e W} and Q = {x:x2 < 20 and x € W), check whether P and Q are equal
or equivalent.
and B
x. g. zł. Is B > A or A 5B? Give reasons​

Answer 1

Answer:

P and Q are equal because in both set we have same elements they are {0,1,2,3,4}.

I think it will help you...

Answer 2

Answer:

11th

Maths

Straight Lines

Introduction

If the distance of P(x,y) f...

MATHS

avatar

Asked on October 15, 2019 by

Tusharika Mathane

If the distance of P(x,y) from A(5,1) and B(-1,5) are equal, then prove that 3x = 2y.

MEDIUM

Help best friend

Study later

ANSWER

A(5,1)≡(x

1

,y

1

)

B(−1,5)≡(x

2

,y

2

)

P≡(x,y)

PA=PB ....(given)

∴ By distance formula

(x−x

1

)

2

+(y−y

1

)

2

we have,

⇒(x−5)

2

+(y−1)

2

=(x+1)

2

+(y−5)2

⇒x

2

−10x+25+y

2

−2y+1=x

2

+2x+1+y

2

−10y+25

∴−2y+10y=2x+10x

∴8y=12y

2y=3x. [henceproved]