Page 160 - sscbbb

ofxyz–x2 –y2 –z2 ?
मदद x=(a/b)+(b/a),y=(b/c)+(c/b)औय z=(c/a)+(a/c)है,xyz–x2 –y2 –z2 का भान
क्मा है?
[A] – 4 [B] 2 [C] – 1 [D] – 6
164. If [a + (1/a)]2 - 2[a - (1/a)] = 12, then which of the following is a value of 'a'? मदद [a + (1/a)]2 - 2[a - (1/a)] = 12 है, तो ननम्नभरखखत भें से 'a' का भान क्मा है?
18 February 2018 SSC MAINS
[A] – 8 + √3 [B] – 8 – √3 [C] – 8 + √5 [D] None of these
18 February 2018 SSC MAINS
[A] 4 [B] – 4 [C] 1 [D] – 1 166. If x + y = 3, then what is the value of x3 + y3 + 9xy ?
मददx+y=3, है,तो x3+y3+9xy का भान क्मा है?
18 February 2018 SSC MAINS
[A] 15 [B] 81 [C] 27 [D] 9
167. A = (X8 - 1)/ (X4 + 1) and B = (y4 - 1)/ (y2 + 1). If x = 2 and y = 9, then what is the value of A2 + 2AB + AB2 ?
A=(X8 -1)/(X4 +1)औयB=(y4 -1)/(y2 +1).है। मदद x=2औय y=9है,तोA2 +2AB + AB2 का भान क्मा है?
18 February 2018 SSC MAINS
[A] 96475 [B] 98625 [C] 92425 [D] 89125
18 February 2018 SSC MAINS
[A] 9/5 [B] 11/5 [C] 13/7 [D] 9/7 169. If (x/a) + (y/b) = 3 and (x/b) – (y/a) = 9, then what is the value of x/y?
मदद (x/a)+(y/b)=3औय (x/b)–(y/a)=9है,तो x/yका भान क्मा है?
18 February 2018 SSC MAINS
[A] (b + 3a)/ (a – 3b) [B] (a + 3b)/ (b – 3a)
[C] (1 + 3a)/ (a + 3b) [D] (a + 3b2)/ (b – 3a2)
170. p3 + q3 + r3 - 3pqr = 4. If a = q + r,b = r + p and c = p + q,then what is the valueofa3 +b3 +c3 -3abc?
18 February 2018 SSC MAINS
165. If x2 – 4x + 1 = 0, then what is the value of x9 + x7 – 194x5 -194x3 ? मदद x2–4x+1=0 है,तो x9+x7–194x5 -194x3 का भान क्मा है?
168. If x – 4y = 0 and x + 2y = 24, then what is the value of (2x + 3y)/(2x – 3y)?
मदद x–4y=0औय x+2y=24है,तो (2x+3y)/(2x–3y)का भान क्मा है?
168