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Recent questions tagged basic algebra
+3
votes
1
answer
Let f(x) = cos^2x + cos^22x + cos^23x. Number of values of x ∈[0,p] for which f(x) equals the smallest positive integer is
asked
Mar 30, 2019
in
Mathematics
by
kratos
isc
class-11
kvpy
icse
mathematical induction
rmo
class-12
basic algebra
+1
vote
1
answer
If a, b and c be three distinct real numbers in G.P. and a + b + c = xb, then x cannot be
asked
Mar 17, 2019
in
JEE
by
kratos
vector algebra
jee main 2021
class-11
jee
jee mains 2019
jee mains
jee main
basic algebra
+1
vote
1
answer
Prove that √5 is an irrational number.
asked
Mar 14, 2019
in
Class 11
by
kratos
class-11
class-9
class-10
real numbers
basic algebra
+3
votes
1
answer
If b = 0, c < 0, is it true that the roots of x^2 + bx + c = 0 are numerically equal and opposite in sign? Justify.
asked
Mar 13, 2019
in
JEE
by
kratos
class-11
jee
quadratic equations
class-9
class-10
jee mains
gravitation
basic algebra
+1
vote
0
answers
Sristi’* salary is same as 4 time Azar’* salary. If together they earn Rs 3750 a month find their individual salaries.
asked
Mar 12, 2019
in
Class 11
by
kratos
linear equations in one variable
class-8
class-11
rectification of errors
class-7
icse
basic algebra
+1
vote
1
answer
Numbers of integral values of ‘a’ for which the quadratic equation x^2 -(a+1)x + (a- 3) =0 has both integral roots are
asked
Mar 12, 2019
in
JEE
by
kratos
cbse
class-11
jee
quadratic equations
jee mains 2019
class-10
jee mains
basic algebra
+1
vote
1
answer
Find all pairs of consecutive even positive integers, both of which are larger than 5 such that their sum is less than 23.
asked
Mar 9, 2019
in
Class 11
by
kratos
linear inequalities
linear inequations
class-11
basic algebra
+2
votes
1
answer
Find all pairs of consecutive even positive integers, both of which are larger than 5 such that their sum is less than 23.
asked
Mar 7, 2019
in
Class 11
by
kratos
linear inequalities
linear inequations
class-11
basic algebra
+1
vote
1
answer
The sum of the series log4 2 - log8 2 + log16 2... is
asked
Feb 24, 2019
in
JEE
by
kratos
class-11
jee
statistics
probability
matrices
determinants
jee mains
class-12
basic algebra
+1
vote
1
answer
Find minimum marks that Sunita must obtain in fifth examination to get grade ‘A’ in the course.
asked
Feb 20, 2019
in
Class 11
by
kratos
linear inequalities
class-11
basic algebra
+2
votes
1
answer
Ravi obtained 70 and 75 marks in first two unit test. Find the minimum marks he should get in the third test to have an average of at least 60 marks,
asked
Feb 12, 2019
in
Class 11
by
kratos
linear inequalities
class-11
basic algebra
+3
votes
1
answer
Resolve 9/((x - 1)(x + 2)^2) into the partial fraction.
asked
Feb 10, 2019
in
Class 12
by
kratos
algebra
class-11
class-12
partial fractions
basic algebra
+1
vote
1
answer
Resolve (x - 1)/(x(x + 2)(x + 4)) into partial fractions.
asked
Feb 5, 2019
in
Class 12
by
kratos
class-11
class-12
basic algebra
+3
votes
0
answers
The percentage of marks obtained by a student in monthly unit tests are given below:
asked
Jan 30, 2019
in
Class 11
by
kratos
class-11
probability
measures of central tendency
class-9
class-10
statistics
basic algebra
+2
votes
1
answer
∫e^log√x/x = .......
asked
Jan 18, 2019
in
Class 11
by
kratos
class-11
basic algebra
+1
vote
1
answer
Prove that √5 is an irrational number,
asked
Jan 17, 2019
in
Class 11
by
kratos
class-11
class-9
class-10
real numbers
basic algebra
+3
votes
1
answer
The solution set of the inequality max {1 – x^2 , |x – 1|} < 1 is
asked
Jan 6, 2019
in
JEE
by
kratos
linear inequalities
class-8
class-11
jee
class-9
jee mains
basic algebra
+3
votes
1
answer
If a, b and c be three distinct real numbers in G.P. and a + b + c = xb, then x cannot be
asked
Dec 29, 2018
in
JEE
by
kratos
vector algebra
jee main 2021
class-11
jee
jee mains 2019
jee mains
jee main
sequences and series
basic algebra
+3
votes
1
answer
If mean of logx, log2x, log8, log4x, log4, log x is log4 then x = _______ (where x > 0)
asked
Dec 17, 2018
in
JEE
by
kratos
class-11
jee
matrices
determinants
jee mains
class-12
basic algebra
+1
vote
1
answer
If log15 = a and log75 = b, then log7545 is : (A) (3b - a)/a (B) (b - 3a)/a
asked
Dec 12, 2018
in
JEE
by
kratos
nda
pair of linear equations in two variables
class-11
jee
cross product
class-10
jee mains
vector
class-12
basic algebra
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