fft1 p122

Let P,Q are two points on the curve y = log1/2(x - 1/2 ) + log24x2 - 4x + 1 and P is also on the circle x2 + y2 = 10 ,

θ lies inside the given circle such that its abscissa is an integer . 1) OP . OQ , O being the origin is

(A) 4 or 7 (B) 4 or 2 (C) 2 or 3 (D) 7 or 8

8 Answers

24
eureka123 ·

what is θ here ???????

4
UTTARA ·

I donno Its given the same way in the paper

But anyways leave it I got the solution

That θ must have been a mistake

1
Manmay kumar Mohanty ·

I MUST BE 'O' NOT 'θ'

39
Pritish Chakraborty ·

It could be Q also..? O they have specified as the origin later.

24
eureka123 ·

@uttara..plz post the soln if u got it ..

3
msp ·

i guess it was Q.i used to write Q more like a theta,i only know the difference between the two :P.

4
UTTARA ·

S o much discussion on one mistake ??? [3]

This was actually a qs from passage

From 1st qs of the passage v get 2 know that P is (3,1)

So OP = 3 i + j

OQ = i + j or 2 i + j

OP . OQ = 4 OR 7

[ HOPE NOW ALL OF U GOT WHAT IS θ ?? {Q} ]

24
eureka123 ·

thx

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