Advertisements
Advertisements
प्रश्न
Find the simplest form of `(2sqrt(45)+3sqrt(20))/(2sqrt(5))`.
उत्तर
= `(2sqrt45 + 3sqrt20)/(2sqrt5)`
= `(2sqrt(9 xx 5) + 3sqrt(4 xx 5))/(2 sqrt 5)`
= `(2sqrt(3^2 xx 5) + 3sqrt(2^2 xx 5))/(2sqrt5)`
= `(2 xx 3sqrt5 + 3 xx 2sqrt5)/(2sqrt5)`
= `(2cancelsqrt5 (3 + 3))/(2cancelsqrt5)` = 6
APPEARS IN
संबंधित प्रश्न
Define real numbers .
Show that there is no value of n for which `(2^n xx 5^n)` ends in 5.
Two positive integers a and b can be written as a = x3y2 and b = xy3. x, y are prime numbers. Find LCM (a, b).
Find, how many two digit natural numbers are divisible by 7.
Two numbers are in the ratio of 5: 6. If 7 is subtracted from each of the numbers, the ratio becomes 4: 5. Find the numbers.
To enhance the reading skills of grade X students, the school nominates you and two of your friends to set up a class library. There are two sections: section A and section B of grade X. There are 32 students in section A and 36 students in section B.
If the product of two positive integers is equal to the product of their HCF and LCM is true then, the HCF (32, 36) is:
To enhance the reading skills of grade X students, the school nominates you and two of your friends to set up a class library. There are two sections: section A and section B of grade X. There are 32 students in section A and 36 students in section B.
7 × 11 × 13 × 15 + 15 is a:
A seminar is being conducted by an Educational Organisation, where the participants will be educators of different subjects. The number of participants in Hindi, English and Mathematics are 60, 84 and 108 respectively.
The LCM of 60, 84 and 108 is:
A seminar is being conducted by an Educational Organisation, where the participants will be educators of different subjects. The number of participants in Hindi, English and Mathematics are 60, 84 and 108 respectively.
The product of HCF and LCM of 60, 84 and 108 is:
A seminar is being conducted by an Educational Organisation, where the participants will be educators of different subjects. The number of participants in Hindi, English and Mathematics are 60, 84 and 108 respectively.
108 can be expressed as a product of its primes as:
