Advertisements
Advertisements
प्रश्न
Find the squares of the following:
`(7x)/(9y) - (9y)/(7x)`
Advertisements
उत्तर
`((7x)/(9y) - (9y)/(7x))^2`
= `((7x)/(9y))^2 + 2((7x)/(9y))((9y)/(7x)) + ((9y)/(7x))^2`
= `(49x^2)/(81y^2) + 2 + (81y^2)/(49x^2)`.
APPEARS IN
संबंधित प्रश्न
Verify that `x^3+y^3+z^3-3xyz=1/2(x+y+z)[(x-y)^2+(y-z)^2+(z-x)^2]`
If \[x + \frac{1}{x} = 5\], find the value of \[x^3 + \frac{1}{x^3}\]
If 2x+3y = 13 and xy = 6, find the value of 8x3 + 27y3
Evaluate of the following:
(598)3
Find the following product:
(3x + 2y + 2z) (9x2 + 4y2 + 4z2 − 6xy − 4yz − 6zx)
If p + q = 8 and p - q = 4, find:
p2 + q2
If a2 - 3a - 1 = 0 and a ≠ 0, find : `"a"^2 - (1)/"a"^2`
Using suitable identity, evaluate the following:
9992
Factorise the following:
16x2 + 4y2 + 9z2 – 16xy – 12yz + 24xz
Find the value of x3 + y3 – 12xy + 64, when x + y = – 4
