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How to input cos x=0.75? - Casio FX-9860G Graphic Calculator

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I assume that if you want to input the equation it is with the intent to solve it. If that be the case then what follows will help you input and solve any equation (linear, quadratic, trig, etc.)

Make sure the calculator angle unit is the same as your problem requires (degree, radian, grad). Here are some screen capture to help you. Change the equation to yours. how to input cos x=0.75? - 21c8779.jpg4b6c1ea.jpg
To enter the equation in screen above, use the right arrow.

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You have to enter an initial guess on line X=, a default value may be supplied by calculator: It depends on last value stored in X. Once a value is entered press the Fhow to input cos x=0.75? - a5b0f3e.jpgLV

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Press F1: Rept if you want to solve another equation.

Posted on Jan 14, 2011

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Posted on Jan 02, 2017

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A cone cost 0.90 and sudaes cost 1.65. Tuesday they sold a total of 182 cones and sundaes the receipts for that day was 226.05. How many cones were sold


X = Cones
Y = Sundaes
X + Y = 182 --- Y = 182 - X
0.90 * X +1.65 * y = 226,05
0,90 * X + 1,65 ( 182 - X) = 226,05
0.90 * X + 1,65 * 182 - 1.65 X = 226.05
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