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Supplement 11th Maths P 2013 E WA
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Supplement 11th Maths P 2013 E WA
basic mathematics to build the conepts for iit jeeFull description...
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SUPPLEMENT DPP [ REVIEW OF CLASS X ]
JEEnius DPP MATHEMATICS
Class:XI
[ Review of Class X ]
Supplement-1
Evaluate each of the following: Q.1
4
(a) 3 (g)
(b) (– 2x)
31 x 2 y 4 2
3y (c) 4
3
2 3 3
x y
(h) (16)
1/4
(a)
(d)
( x y) 2 3 ( x y) 1 6
(e)
[(x y) 2 ]1 4 1 2 2 3 1 6 3 2
(g)
c
(h)
82 3 a 1 3 b 2 3c5 2
(f) (2y –1) –1
(j) (– a3 b3) –2/3
13
(b)
21 · 20 · 23
a b
(e) (–4x) –2
8 (l ) (103)0 (o) 3y2/3 y4/3
23 · 22 · 24
4
(d) 4 –3
82 3 (8) 2 3
(i)
(k) – 3(–1) –1/5(4) –1/2 (n) xy x4y Q.2
3
(m) (x – y)0 [(x – y)4] –1/2 (p) (4 · 103) (3 · 10 –5) (6 · 10 4)
10 x y ·10 y x ·10 y1
(c)
10 y1 ·102 y1 (102 ) 3 (103 )1 6
31 2 · 31 3 [(x –1) –2] –3
(f)
10 · (104 ) 1 2
28 · 34 54
31 2 · 32 3
1 4
4
(i)
3
a 2 b5 c 2d 2
0
Q.3
Q.4
(a)
27 2 3 52 3 · 51 3
1
(d)
(27)2/3 – 3(3x)0 + (25)1/2
(c)
82/3 + 3 –2 –
(e)
(8)2/3 · (16) –3/4 · 2 0 – 8 –2/3
(f)
3
(g)
x3/2 + 4x –1 – 5x0 when x = 4
(h)
y2/3 + 3y –1 – 2y0 when y = 1/8
9
(10)0
(b)
1 4 2 1 -16 1 2·4 · 3 0 2
3
4
(i)
64 –2/3 · 16 5/4 · 2 0 ·
(k)
72 y 2n · 90 ( 2 yn 2 ) 1 3
(a)
(c)
(f)
(i)
0
(25) + (0.25)
1/2
– 8
1/3
–1/2
·4
(64)
+ (0.027)
(d)
3 4(3) 1 0
a · a 2 3
(j)
32 5( 2)0
–2/3
( x 2)2 when x = – 6
–2
– 3(150) + 12(2)
6
1/3
x
2 3
–2/3
(g) (0.125)
+
a5
1
(b)
30 x 4x 1
a
2 3
8
if x = 8
+
3 22
1
3
5 6
a 2 · a 1 2
+ 3a0 + (3a)0 + (27) –1/3 – 1 3/2
(e)
(h)
2 2 1 5 n
+ (– 8) – 4 3/2
32 25 n
(60000)3 (0.00002) 4 (100) 2 (72000000 )(0.0002)5 PAGE# 1
Q.5
(a)
(b)
1 1 (5 x )1 2 (5 x )1 2 ( x 2 3x 4) 2 3 ( 2x 3) 2 3 if x = 1 2 23 ( x 3x 4)
( x 2 3x 4)1 3
1 (9 x 2 5y)1 4 (2 x ) x 2 (9 x 2 5y) 3 4 (18x ) 4 if x = 2, y = 4 2 12 (9 x 5y)
(c)
1 2 ( x 1) 2 3 ( x 1) 1 2 ( x 1)1 2 ( x 1) 1 3 2 3
(d)
x 1 x 2 2x 1
(e)
3x 2 y 4x 2 4xy y 2
( x 1)
Class:XI
43
[ Review of Class X ]
Supplement-2
FACTORIZATION 2
2
Type-1 : (i) (iv)
E – C = (E – C) (E + C) x4 – y4 4x2 – 9y2 – 6x – 9y
Type-2 : (i) (iii)
a3 ± b3 (a ± b) (a2 ab + b2) 8x3 – 27y3 8x3 - 125y3 + 2x – 5y
(ii) (v)
9a2 – (2x – y) 2 4x 2 – 12x + 9 – 4y2
(ii) (iv)
(iii)
(3x – y)2 – (2x – 3y) 2
a6 – b 6 8x 3 + 1
x2 + px + q / ax 2 + bx + r Type-3 : (i) x2 + 3x – 40 (ii) x2 – 3x – 40 (iii) x 2 + 5x – 14 (iv) x2 + 6x – 187 (v) x 2 – 9x – 90 (vi) a 2 – 11a + 28 (vii) x2 – 3x – 4 (viii) x 2 – 2x – 3 ×—————×—————×—————×—————×—————× (i) 3x2 – 10x + 8 (ii) 12x2 + x – 35 (iii) 3x2 – 5x + 2 (iv) 3x2 – 7x + 4 (v) 7x 2 – 8x + 1 (vi) 2x 2 – 17x + 26 (vii) 3a2 – 7a – 6 (viii) 14a2 + a – 3 Type-4 : Factorisationalybyconvertingthe givenexpression into a perfect square. (i) a2 – 4a + 3 + 2b – b 2 (ii) a4 + a 2 b2 + b4 (iii) x4 + 324 (iv) x4 – y2 + 2x2 + 1 (v) a4 + a 2 + 1 (vi) 9x4 – 10x2 + 1 (vii) 4a4 – 5a2 + 1 (viii) 4x4 + 81. Type-5: Using Remainder Theorem (i) x3 – 13x – 12 (iv) 2x3 + 9x2 + 10x + 3 (vii) x3 – 4x2 + 5x – 2
(ii) (v)
x 3 – 7x – 6 x3 – 9x2 + 23x – 15
(iii) (vi)
x 3 – 6x2 + 11x – 6 2x 3 – 9x2 + 13x – 6
Type-6 : a3 + b3 + c3 – 3abc (i) 8a3 + b3 + c 3 – 6abc (ii) 8a6 + 5a3 + 1 (iii) Show that (x – y)3 + (y – z)3 + (z – x)3 = 3 (x – y) (y – z) (z – x). PAGE# 2
Type-7 : (i) (ii) (iii) (iv) (v)
f(x) = (x + 1) (x + 2) (x + 3) (x + 4) – 8 (x + 1) (x + 2) (x + 3) (x + 4) – 15 (x – 3) (x + 2) (x – 6) (x – 1) + 56 4x(2x + 3) (2x – 1) (x + 1) – 54 (x – 3) (x + 2) (x + 3) (x + 8) + 56
Class:XI
[ Review of Class X ]
Supplement-3
Rationalization
2.
1
Simplify: (a)
1.
3 2 1 x2 1 x2
Rationalize:
3.
Simplify:
4.
Simplify:
5.
Simplify: (i)
(iv)
2
1 x 1 x
2
74 3
.
3 6
.
5 3 2 12 32 50 3 2 3 6 3 22 3
–
4 3 6 2
(ii)
3 22 3 3
(v)
2 3
Class:XI
Q.1
1
(b)
+
6 2 3
.
3 5 3
(iii)
5 3 3 5 2
(vi)
[ Review of Class X ]
2 1 2 1 3 5 3 5 Supplement-4
Match the values of x given in Column-II satisfying the exponential equation given in Column-I (Do not verify). Remember that for a > 0,the term ax is always greater than zero x R. Column-I Column-II (A) (B) (C) (D) (E)
5x – 24 =
25
5x (2x + 1) (5x) = 200 42/x – 5(41/x) + 4 = 0 22x + 1 – 33 (2 x – 1 ) + 4 = 0 2 x 1· 4 x 1 8
x 1
= 16
(F)
32x + 1 + 10 (3x) + 3 = 0
(G)
4x
(H) (I)
64 (9x) – 84 (12 x) + 27 (16x) = 0 52x – 7x – 52x (35) + 7x (35) = 0
2
2
x 2 2 9 2 8 0
(P)
–3
(Q) (R) (S)
–2 –1 0
(T)
1
(U)
2
(V)
3
(X)
None
PAGE# 3
Q.2
Which ofthefollowingequation(s) has (have) onlyunity asthesolution 1
(A) 4 x
2
log 10
2
x+1
(C) 7 (3
Q.3
)–5
x+2
=3
x+4
– 5
x+3
(D) 2
x 2 6
x2 6
·3
(6 x 1 ) 4 65
Which ofthe following equation(s) has (have)onlynatural solution(s). (A) 6 · 9 1/x – 13 · 61/x + 6 · 41/x = 0 (B) 3 · 2x/2 – 7 · 2x/4 = 20 x2 5
(C) 4x Q.4
(base of the log is 10) (B) 2 (3x + 1) – 6 (3 x – 1) – 3x = 9
6 · 2x
x 2 5
(D) 5 x · 8x 1 500 x
8 0
Solve the following equations: (i)
4x – 10 · 2 x – 1 = 24.
(ii)
4 · 22x – 6x = 18 · 3 2x.
(iii)
32x – 3 – 9 x – 1 + 272x/3 = 675.
(iv)
7x 2
5
x 1
3
(v)
9
x 2 2 x 11
·
25
9
5 . 3
(vi)
1 7
· 7 x 1 14 · 7 x 1 2 · 7 x 48
x 2 7.2 x 3.9 9 3 log (7 x ) 0 . 3
52x = 32x + 2 · 5x + 2 · 3x.
(vii)
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
Q.1
(a) 81 (b) – 8x
(h) 2
(i)
3
(c)
1
(a) 29 (b)
(h) Q.3
Q.4
(a)
1
(k)
2 2
a b (p) 7200 1
(c) 1
10
1 64 3 2
(d) 1
(e)
1
(f)
16x 2
y
(g)
2 1
(l ) 1
(m)
(e) 10 –4
(f) x –6 (g)
( x y)2
4x5 3y 7
(n) x5y
a b 8c 4
14 56
4
(i)
15 16
(b)
3
(i) 18
(j)
(a) 0.8
(b)
(h)
(d)
64
(j)
2
(o) 3y2
Q.2
27 y3
1 2
(i)
a b
d
7
(c)
2 2
(k)
a 22 3
c
(c)
46 15
4
(d) 11 (e)
1
(f)
4
1 4
(g) 4
(h)
89 4
2 y2 (d) 34
(e)
31 2
(f)
1 16
(g)
26 5
150
PAGE# 4
Q.5
(a)
1
(b)
3
7
(c)
8
7x 6( x 1)1 2 ( x 1)5 3
(d)
2x if x – 1, – 2 if x – 1
x – y if 2x y, 5x – 3y if 2x y
(e)
########################
(i) (iv) (i) (iii) (i) (iv) (vii) (i) (iv) (vii) (i) (iii) (v) (vii)
2
2
(x + y ) (x + y) (x – y) (2x + 3y) (2x – 3y – 3)
Type-1 (3a + 2x – y) (3a – 2x + y) (2x – 3 + 2y) (2x – 3 – 2y)
(ii) (v)
2
(5x – 4y) (x + 2y)
Type-2 (ii) (a + b) (a2 – ab + b2) (a – b) (a2 + ab + b2) (iv) (1 + 2x) (1 – 2x + 4x 2)
2
(2x – 3y) (4x +6xy+9x ) (2x – 5y) (4x2 + 10xy + 25y2 + 1)
Type-3 (x + 8) (x – 5) (ii) (x – 8) (x + 5) (iii) (x + 7) (x – 2) (x + 17) (x – 11) (v) (x – 15) (x + 6) (vi) (a – 7) (a – 4) (x – 4) (x + 1) (viii) (x – 3) (x + 1) ×—————×—————×—————×—————×—————× (x – 2) (3x – 4) (ii) (4x + 7) (3x – 5) (iii) (3x – 2) (x – 1) (x – 1) (3x – 4) (v) (x – 1) (7x – 1) (vi) (2x – 13) (x – 2) (a – 3) (3a + 2) (viii) (2a + 1) (7a – 3) Type-4 (ii) (a2 + ab + b2) (a2 – ab + b2) (iv) (x 2 + 1 + y) (x2 + 1 – y) (vi) (3x + 1) (3x – 1) (x + 1) (x – 1)]
(a – b – 1) (a + b – 3) (x2 + 6x + 18) (x 2 – 6x + 18) (a2 + a + 1) (a2 – a + 1) (2a + 1) (2a – 1) (a + 1) (a – 1)
Type-5 (x + 2) (x – 3) (x + 1) (iii) (x – 1) (x – 3) (x – 5) (vi)
(i) (iv) (vii)
(x + 1) (x – 4) (x + 3) (x + 1) (x + 3) (2x + 1) (x – 2) (x – 1)2
(i)
Type-6 (2a + b + c) (4a + b + c – 2ab – bc – 2ac)
(i) (iii) (v)
(iii)
2
(ii) (v)
2
2
(ii)
(x – 1) (x – 2) (x – 3) (x – 1) (x – 2) (2x – 3)
(2a2 – a + 1) (4a4 + 2a3 – a2 + a + 1)
Type-7 (ii) (x2 + 5x + 1) (x 2 + 5x + 9) (iv) 2(2x 2 + 2x + 3) (4x 2 + 4x – 9)
(x2 + 5x + 8) (x 2 + 5x + 2) (x2 – 4x – 4) (x – 5) (x + 1) (x2 + 5x – 22) (x + 1) (x + 4)
########################
2. 5.
1 1 x
4
.
3.
5 2 6 3.650
(ii)
x2 (i) (v)
(vi)
4.
3
( 2 3 6 ) (3 2 6 ) (3 2 2 3 ) = 0
(iii) 5.828 9 2 15 6.854 ########################
(iv)
6.464
Q.1 Q.2
(A) U, (B) U, (C) T, (D) Q, V, (E) P, Q, R, S, T, U, V, (F) X, (G) R, T, (H) T, U, (I) S AB Q.3 BD
Q.4
(i)
x=3
(v)
x=
7 2
,2
(ii)
x=–2
(vi)
x=
1 5
,6
(iii)
x=3
(vii)
x=1
(iv)
x=0 PAGE# 5
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