Advertisements
Advertisements
Question
Find x, if
Advertisements
Solution
We have:
\[\left( \frac{2}{5} \right)^{- 3} \times \left( \frac{2}{5} \right)^{15} = \left( \frac{2}{5} \right)^{2 + 3x}\]
\[\left( \frac{2}{5} \right)^{12} = \left( \frac{2}{5} \right)^{2 + 3x}\]
12 = 2 + 3x
10 = 3x
`10/3=x`
`x=10/3`
APPEARS IN
RELATED QUESTIONS
Find the value of (3−1 + 4−1 + 5−1)0
Find the value of the following:
(30 + 4−1) × 22
Simplify:
By what number should 5−1 be multiplied so that the product may be equal to (−7)−1?
Express the following as a rational number in the form \[\frac{p}{q}:\]
6−1
Express the following rational numbers with a negative exponent:
Find x, if
For a non zero rational number a, (a3)−2 is equal to
The multiplicative inverse of `(3/2)^2` is not equal to `(2/3)^-2`.
Simplify and express the result in power notation with positive exponent.
2−3 × (−7)−3
