8^(2/3)
- Calculate
- Power xʸ
- Base x
- 8
- Exponent y
- 2/3
- ਨਤੀਜਾ
- 4
- Exact form
- 4
ਜਾਂਚ ਦਾ ਸਰੋਤ: ∛8 = 2, 2² = 4 (hand calculation; Python 8 ** (2/3) = 3.9999999999999996)
Raise a number to any exponent, including fractional and negative ones, or take its square, cube or nth root, with exact simplified radicals such as 5√2.
ਅੱਪਡੇਟ ਕੀਤਾ ਜਾਂਚੀਆਂ ਉਦਾਹਰਨਾਂ: 9
16 to the power 2/3 is 4∛4 ≈ 6.34960420787.
The denominator 3 is the root; the numerator 2 is the power.
An exponent says how many times to multiply a base by itself: 2⁵ = 32. The rules extend it beyond whole numbers. A negative exponent is a reciprocal (2⁻³ = 1/8), and a fractional exponent m/k is a root, x^(m/k) = (ᵏ√x)^m, so 8^(2/3) = (∛8)² = 4. Roots are simplified by pulling out perfect powers: √50 = √(25 × 2) = 5√2.
Algebra homework, simplifying radicals and formulas with fractional powers are the usual uses. The default, 16^(2/3), is ∛256 = 4∛4 ≈ 6.3496, and the cube root of 54 is 3∛2 because 54 = 27 × 2.
The answer is exact whenever an exact form exists, as a fraction or a simplified radical, and the decimal value is shown to 12 places. Odd roots of negative numbers are real, (−8)^(1/3) = −2; even roots of negative numbers have no real value. 0⁰ is taken as 1.
ਜਾਂਚ ਦਾ ਸਰੋਤ: ∛8 = 2, 2² = 4 (hand calculation; Python 8 ** (2/3) = 3.9999999999999996)
ਜਾਂਚ ਦਾ ਸਰੋਤ: 54 = 27 × 2; Python decimal (60 digits) Decimal(54) ** (Decimal(1)/3) = 3.7797631496846193…
ਜਾਂਚ ਦਾ ਸਰੋਤ: Python Fraction(2) ** -3 = 1/8
ਜਾਂਚ ਦਾ ਸਰੋਤ: (−2)³ = −8 (real cube root)
The denominator is a root and the numerator is a power: x^(m/k) = (ᵏ√x)^m. So 8^(2/3) takes the cube root of 8, which is 2, and squares it to give 4, while 16^(1/2) = √16 = 4. A decimal exponent works the same way once written as a fraction: 2^0.5 = 2^(1/2) = √2 ≈ 1.41421.
A negative exponent means the reciprocal of the positive power: x⁻ⁿ = 1/xⁿ. So 2⁻³ = 1/2³ = 1/8 = 0.125, and 10⁻² = 0.01. The rule follows from dividing powers, 2³ ÷ 2⁶ = 2³⁻⁶ = 2⁻³. A negative exponent never makes the result negative, and 0 raised to a negative power is undefined because it means dividing by zero.
Split the number into the largest perfect square times what is left, then take the square root of the square. 50 = 25 × 2, so √50 = 5√2 ≈ 7.0711. Higher roots work the same way with perfect cubes, fourth powers and so on: 54 = 27 × 2, so ∛54 = 3∛2. The radical is fully simplified when nothing left under the sign has such a factor, as with √2 or ∛4.
By convention x⁰ = 1 for every x, including 0, because that keeps formulas such as the binomial theorem and the power series eˣ = Σ xⁿ/n! correct at x = 0; Knuth's Concrete Mathematics (§5.1) argues for this definition. As a limit, though, 0⁰ is an indeterminate form: xʸ can approach different values as x and y both approach 0.
Not as a real number, because no real number squared gives −4. Odd roots are different: a negative number cubed stays negative, so ∛(−8) = −2 and the fifth root of −32 is −2. Even roots of negative numbers exist only as complex numbers, √(−4) = 2i, which the complex number calculator handles.
ਸਟੀਕਤਾ ਤੁਹਾਡੇ ਇਨਪੁੱਟਾਂ ਅਤੇ ਵਿਧੀ ਦੀਆਂ ਧਾਰਨਾਵਾਂ ਉੱਤੇ ਨਿਰਭਰ ਕਰਦੀ ਹੈ। ਦਸ਼ਮਲਵ ਗਣਨਾ 50 ਮਹੱਤਵਪੂਰਨ ਅੰਕ ਵਰਤਦੀ ਹੈ, ਪਰ ਅਨੁਮਾਨ, ਅੰਕੀ ਵਿਧੀਆਂ ਅਤੇ ਸਰੋਤ ਡਾਟਾ ਘੱਟ ਸਟੀਕ ਹੋ ਸਕਦੇ ਹਨ; ਦਿਖਾਏ ਮੁੱਲਾਂ ਨੂੰ ਗੋਲ ਕਰਨ ਨਾਲ ਇਹ ਹੱਦਾਂ ਦੂਰ ਨਹੀਂ ਹੁੰਦੀਆਂ। ਸੁਤੰਤਰ ਸਰੋਤਾਂ ਦੀਆਂ ਹੱਲ ਕੀਤੀਆਂ ਉਦਾਹਰਨਾਂ ਨਾਲ ਜਾਂਚ: 9। ਉਦਾਹਰਨ ਲਈ, “8^(2/3)” ਦੀ ਜਾਂਚ ∛8 = 2, 2² = 4 (hand calculation; Python 8 ** (2/3) = 3.9999999999999996) ਨਾਲ ਕੀਤੀ ਜਾਂਦੀ ਹੈ।
Khan Academy — Rational exponents and radicals; Wolfram MathWorld — Radical.
ਇਸ ਕੈਲਕੁਲੇਟਰ ਵਿੱਚ ਸੁਤੰਤਰ ਸਰੋਤਾਂ ਦੇ ਜਵਾਬਾਂ ਵਾਲੀਆਂ 9 ਹੱਲ ਕੀਤੀਆਂ ਉਦਾਹਰਨਾਂ ਹਨ। ਇਹ ਟੈਸਟ ਸਮੂਹ ਵਿੱਚ ਚੱਲਦੀਆਂ ਹਨ ਅਤੇ ਤੁਸੀਂ ਇੱਥੇ ਵੀ ਚਲਾ ਸਕਦੇ ਹੋ।
The logarithm of a number to any base, including ln and log₁₀, with change-of-base steps, or the exponent x that solves bˣ = y, exact when rational.
ਸੰਖਿਆ ਨੂੰ ਦਸ਼ਮਲਵ ਸਥਾਨਾਂ, ਸਾਰਥਕ ਅੰਕਾਂ ਜਾਂ ਸਭ ਤੋਂ ਨੇੜਲੇ ਦਸ ਜਾਂ ਸੌ ਦੇ ਗੁਣਜ ਤੱਕ ਪੂਰਨਾਂਕਿਤ ਕਰੋ। ਬੈਂਕਰ ਪੂਰਨਾਂਕਣ, ਹੇਠਾਂ ਅਤੇ ਉੱਪਰ ਵੱਲ ਪੂਰਨਾਂਕਣ ਸਮੇਤ ਨੌਂ ਨਿਯਮ ਉਪਲਬਧ ਹਨ।
Prime factorization of any whole number up to 60 digits, with a factor tree, a prime or composite verdict, its divisors and the nearest primes.
ਦੁਘਾਤੀ ਫ਼ਾਰਮੂਲੇ ਨਾਲ ax² + bx + c = 0 ਹੱਲ ਕਰੋ: ਕਰਣੀਆਂ ਜਾਂ ਕੰਪਲੈਕਸ ਸੰਖਿਆਵਾਂ ਵਿੱਚ ਸਹੀ ਮੂਲ, ਵਿਵਿਕਤਕ, ਸਿਖਰ, ਸਮਮਿਤੀ ਧੁਰਾ ਅਤੇ ਗ੍ਰਾਫ਼।
All real and complex roots of a polynomial up to degree 6, such as a cubic or quartic equation, with repeated roots found exactly and 30-digit accuracy.
Add, subtract, multiply and divide complex numbers, raise them to powers, find nth roots, and convert a + bi to polar form, with an Argand diagram.