Advertisements
Advertisements
प्रश्न
If a = 3 and b = -2, find the values of :
aa + bb
Advertisements
उत्तर
aa + bb
Here a = 3 and b = -2
Put the values in the expression aa + bb
33 + (-2)-2
`=27+1/(-2)^2`
`=27+1/4`
`=(108+1)/4`
`=109/4`
APPEARS IN
संबंधित प्रश्न
Solve the following equation for x:
`2^(3x-7)=256`
If `a=xy^(p-1), b=xy^(q-1)` and `c=xy^(r-1),` prove that `a^(q-r)b^(r-p)c^(p-q)=1`
If `27^x=9/3^x,` find x.
Solve the following equation:
`3^(x-1)xx5^(2y-3)=225`
If `2^x xx3^yxx5^z=2160,` find x, y and z. Hence, compute the value of `3^x xx2^-yxx5^-z.`
If 3x-1 = 9 and 4y+2 = 64, what is the value of \[\frac{x}{y}\] ?
If (23)2 = 4x, then 3x =
The simplest rationalising factor of \[\sqrt{3} + \sqrt{5}\] is ______.
If x = \[\sqrt[3]{2 + \sqrt{3}}\] , then \[x^3 + \frac{1}{x^3} =\]
If \[\sqrt{2} = 1 . 4142\] then \[\sqrt{\frac{\sqrt{2} - 1}{\sqrt{2} + 1}}\] is equal to
