Question about Sharp EL-531VB Calculator
Hi have a problem, i must work out cot 78 and the answer is 0.213, but i get the wong answer everytime. my calculator is set to degrees but i cant seem to get that answer, can anyone help me please?
I don't have a Cot button but Cot x = 1/Tan x so enter
1/Tan 78 = 0.212556 etc if you have a fraction button you can write it that way too:
1 frac button Tan 78 = 0.212556 etc
Posted on Jun 17, 2008
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Posted on Jan 02, 2017
Tips for a great answer:
Jul 09, 2014 | Texas Instruments TI-84 Plus Calculator
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SEC, CSC & COT are the INVERSE of COS, SIN & TAN and are usually require hitting the "2nd F" or "Func" key of the calc to make:
SIN button work as COSEC,
COS button work as SEC
TAN button work as COT
Formulas are below:
sec x = 1
cosec x = 1
cot x = 1 = cos x
tan x sin x
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