Question about Texas Instruments TI-85 Calculator

Lost manual I purchased a TI 85 a few years back and lost the manual. Now that I have gone back to college, I have one Math course left. I cannot see buying a new calc just cuz I lost the manual. I need to know how to get the fifth root of 1.33....

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Posted on Jan 21, 2009

• Phil Haney Jan 21, 2009

If you raise a number x to an exponent that is a fraction, the fraction consists of the power over the root.

i.e. x^(3/4) = the 4th root of x cubed.

So 16 to the 1/2 power { 16^(1/2) } is the square root of 16.

Therefore, the 5th root of 1.33..... would be 1.33....^(1/5)

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