Advertisements
Advertisements
प्रश्न
The value of \[\left\{ 8^{- 4/3} \div 2^{- 2} \right\}^{1/2}\] is
विकल्प
\[\frac{1}{2}\]
2
\[\frac{1}{4}\]
4
Advertisements
उत्तर
Find the value of `{8^ (- 4/3)÷ 2^-2}^(1/2)`
`{8^ (- 4/3)÷ 2^-2}^(1/2) = {2^(3x-4/3)÷2^-2 }^(1/2)`
`= {2^(3x(-4)/3)÷2^-2 }^(1/2)`
`= {2^-4 ÷2^-2 }^(1/2)`
`{8^ (- 4/3)÷ 2^-2}^(1/2) = {2^(-4xx1/2)÷ 2^(-2xx1/2)}`
`= {2^(-4xx1/2)÷ 2^(-2xx1/2)}`
` = {2^2 ÷ 2^-1}`
` = {(1/2^2)/(1/2)}`
`{8^ (- 4/3)÷ 2^-2}^(1/2) = {1/(2xx2) xx 2/1}`
=`{1/(2xx2) xx 2/1}`
= `1/2`
APPEARS IN
संबंधित प्रश्न
Simplify the following
`((4xx10^7)(6xx10^-5))/(8xx10^4)`
Solve the following equation for x:
`2^(3x-7)=256`
Prove that:
`(2^n+2^(n-1))/(2^(n+1)-2^n)=3/2`
Solve the following equation:
`4^(2x)=(root3 16)^(-6/y)=(sqrt8)^2`
State the quotient law of exponents.
The value of m for which \[\left[ \left\{ \left( \frac{1}{7^2} \right)^{- 2} \right\}^{- 1/3} \right]^{1/4} = 7^m ,\] is
If o <y <x, which statement must be true?
The positive square root of \[7 + \sqrt{48}\] is
Simplify:-
`(1/3^3)^7`
Simplify:
`(3/5)^4 (8/5)^-12 (32/5)^6`
