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Recent questions tagged surds
+3
votes
1
answer
The sum of the series 1/(√3+√4) + 1/√(4+√5) +....+ 1/√(224 +√225) is
asked
Jan 18, 2019
in
Class 10
by
kratos
cbse
class-8
class-9
class-10
airthmetic progressions
icse
real numbers
surds
+3
votes
1
answer
If √4 + √8 - 32 + √768 = a√ 2 cos(11π/b), where a and b are natural numbers then (b - a) is divisible by
asked
Jan 8, 2019
in
Class 11
by
kratos
cbse
class-8
class-11
class-9
class-10
applications of differentiation
real numbers
surds
rational numbers
+1
vote
1
answer
In the expansion of (3√4 + 1/4√6)^20 (A) the number of irrational terms is 19
asked
Oct 21, 2018
in
Class 10
by
kratos
ncert
number system
class-10
surds
class-8
number-system
quadratic equations
class-9
+1
vote
1
answer
Represent √6, √7, √8 on the number line.
asked
Oct 6, 2018
in
Class 11
by
kratos
number-system
cbse
cubes and cube roots
class-8
class-11
class-9
surds
basic algebra
+2
votes
1
answer
Prove that sin^-1{cot{sin^-1(√((2 - √3)/4)) + cos^-1(√12/4) + sec^-1(√2)}} = 0
asked
Sep 15, 2018
in
JEE
by
kratos
class-8
jee
jee mains
inverse trigonometric functions
surds
+3
votes
1
answer
Multiply and write the answer in the simplest form : 5√7 x 2√7
asked
Sep 4, 2018
in
Class 9
by
kratos
ratio and proportion
class-8
fractions
decimals
class-9
class-7
real numbers
surds
rational numbers
+1
vote
1
answer
Prove that sin^-1{cot{sin^-1(√((2 - √3)/4)) + cos^-1(√12/4) + sec^-1(√2)}} = 0
asked
Aug 22, 2018
in
JEE
by
kratos
class-8
jee
jee mains
inverse trigonometric functions
surds
+2
votes
1
answer
Multiply : 2 √12 × √3
asked
Jul 28, 2018
in
Class 9
by
kratos
class-8
number system
rationalisation
class-9
sruds
surds
+3
votes
1
answer
Modulus of vector 2i - 7j - 3k is (a) √12 (b) √50 (c) √60 (d) 2√5
asked
Jul 9, 2018
in
Class 12
by
kratos
class-8
cross product
product of three vectors
rationalisation
class-9
vector
class-12
surds
+1
vote
1
answer
Represent √6, √7, √8 on the number line.
asked
Jun 30, 2018
in
Class 11
by
kratos
cbse
cubes and cube roots
class-8
number system
class-11
class-9
surds
basic algebra
+1
vote
1
answer
The value of (3 + √6)/(8√3 - 2√12 - √32 + √50 - √27) is
asked
Jun 26, 2018
in
Class 11
by
kratos
class-8
class-11
class-9
real numbers
surds
basic algebra
+3
votes
1
answer
Solve x = √(6+√6+√6)......
asked
May 19, 2018
in
JEE
by
kratos
class-8
jee
quadratic equations
rationalisation
class-9
class-10
jee mains
inverse trigonometric functions
surds
+1
vote
1
answer
sin^–1 √(2- √3/4) +cos^-1 √12/4 +sec ^-1(√2) =
asked
May 1, 2018
in
JEE
by
kratos
class-8
jee
rationalisation
class-9
jee mains
inverse trigonometric functions
surds
+1
vote
1
answer
Let x = (√50 + 7)^1/3 – ( 50 – 7)^1/3. Then -
asked
May 1, 2018
in
Class 11
by
kratos
class-8
class-11
class-9
real numbers
surds
basic algebra
three dimensional geometry
+2
votes
1
answer
The fraction 2(√2 + √6)/3(√2 + √3) is equal to ...........
asked
Apr 16, 2018
in
Class 10
by
kratos
class-8
class-9
class-10
real numbers
surds
+3
votes
1
answer
Simplify √50
asked
Apr 10, 2018
in
Class 11
by
kratos
class-8
class-11
class-9
real numbers
surds
basic algebra
+2
votes
1
answer
Centre of a circle of radius 4√5 **** on the line y = x. If the line x + 2y = 3 is a tangent to the circle,
asked
Apr 9, 2018
in
JEE
by
kratos
algebraic expressions
straight line
cbse
class-8
class-11
circles
jee
jee mains
lines
class-12
surds
+1
vote
1
answer
Which one is greatest in the following : (A) √2 (B) 3√3 (C) 3√4 (D) 3√2
asked
Mar 24, 2018
in
Class 9
by
kratos
number-system
class-8
ncert
class-9
surds
+2
votes
1
answer
The value of 1/(1 + √2) + 1/(√2 + √3) + 1/(√3 + √4) + 1/(√4 + √5) + 1/(√5 + √6) + 1/(√6 + √7) + 1/(√7 + √8) + 1/(√8 + √9) is ...........
asked
Mar 13, 2018
in
Class 11
by
kratos
cbse
class-8
cubes and cube roots
number system
class-11
class-9
surds
basic algebra
+1
vote
1
answer
Find x^2 if x =(√(√5+2)+√(√5-2))/√(√5+1).
asked
Mar 12, 2018
in
Class 12
by
kratos
class-8
exponents
class-9
rationalisation
determinants
class-12
surds
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