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प्रश्न
Solve for x: `(2^(2x - 1))/(2^(x + 2))` = 4
योग
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उत्तर
`(2^(2x - 1))/(2^(x + 2))` = 4
`2^(2x – 1 – (x + 2))` = 22
`2^(2x – 1 – x – 2)` = 22
`2^(2x – 3)` = 22
Equating the powers of the same base 2.
x – 3 = 2
x – 3 + 3 = 2 + 3
x = 5
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अध्याय 1: Numbers - Exercise 1.6 [पृष्ठ ४५]
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संबंधित प्रश्न
Simplify:
`((1/7)^-3)^4`
Simplify:
`(3^4)^-2`
Simplify:
`((2/5)^-2)^-3`
Write the following number using positive indices.
`(2/7)^-2`
Solve: `((2/5)^(-2))^3`.
Solve for x: `(5^5 xx 5^(-4) xx 5^x)/(5^12)` = 5−5
Simplify using law of exponents.
(64)3
240 + 240 is equal to
`[(7/11)^3]^4 = (7/11)^-`
(–3)4 = –12
