You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
13.<br />
* + * +=* +<br />
1<br />
SRE-231<br />
* + * +<br />
1<br />
* + * + * +<br />
=* +<br />
1<br />
1<br />
y = 3<br />
14<br />
1<br />
i.e. slope ( )<br />
Slope of req. line 1<br />
Mid point of given two points = ( ) 1<br />
( )<br />
Required equation :<br />
1<br />
15 (2x-y) (x-3y) =0 1<br />
2x-y =0 and x-3y=0 1<br />
tan =±<br />
√<br />
1<br />
1<br />
16 1<br />
( ) ( ) (√ ) 1<br />
centre ( ) ( ) 1<br />
and radius ( ) √ units 1<br />
17 Here,<br />
Taking cot on the both sides, we have<br />
or, ( )<br />
or,<br />
or,<br />
or,<br />
1<br />
1<br />
or,<br />
or, 1<br />
( ) ( ) 1<br />
(N.B. : Give full marks for alternative correct method)<br />
18. ( ) ( ) 1<br />
L.H.S = ( ) ( ) 1<br />
* ( ) ( )+ 1<br />
5