Author: cbseassistance
If a=(√5-2)/(√5+2), show that a^4+a^(- 4) is an integer. Find it.
If a=(√5-2)/(√5+2), show that a^4+a^(- 4) is an integer. Find it.
If x=√(3+2√2) , find the value of: x+1/x and x^2+1/x^2
If x=√(3+2√2) , find the value of: x+1/x and x^2+1/x^2
If x=1/(√3-√2), prove that x^3+1/x^3 +2(x^2+1/x^2 )-9(x+1/x)=20
If x=1/(√3-√2), prove that x^3+1/x^3 +2(x^2+1/x^2 )-9(x+1/x)=20
Find the value of x^3-6x^2+18x-22, where x=2-2^(1/3)+2^(2/3)
Find the value of x^3-6x^2+18x-22, where x=2-2^(1/3)+2^(2/3)
A and B have certain number of mangoes. A says to B “If you give me 30 of your mangoes, I will have twice as many as left with you.” B replies “If you give me 10, I will have thrice as many left with you.” How many mangoes does each have?
A and B have certain number of mangoes. A says to B “If you give me 30 of your mangoes, I will have twice as many as left with you.” B replies “If you...
A takes 3 hours more than B to walk 30 km. But, if A doubles his pace, he is ahead of B by 3/2 hours. Find their speed of walking.
A takes 3 hours more than B to walk 30 km. But, if A doubles his pace, he is ahead of B by 3/2 hours. Find their speed of walking.
A says to B, “I am five times old as you were, when I was as old as your are.” The sum of their ages is 64 years. Find their ages.
A says to B, “I am five times old as you were, when I was as old as your are.” The sum of their ages is 64 years. Find their ages.
Ten years ago, the sum of the ages of two sons was one third of their father’s age. One son is two years older than the other and sum of their present ages is 14 years less than the father’s present age. Find the present ages of all.
Ten years ago, the sum of the ages of two sons was one third of their father’s age. One son is two years older than the other and sum of their present ages is...
The age of a father is equal to the sum of the ages of his 5 children. After 15 years, the age of the children will be twice the age of father. Find the age of father.
The age of a father is equal to the sum of the ages of his 5 children. After 15 years, the age of the children will be twice the age of father. Find the...
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