Casio FX991ES Scientific Calculator "cos" Questions

cos+tan(sin)=sec This is a trigonometry problem not a calculator's. cos(x) +tan(x).sin(x) = ( cos(x) + (sin(x)/cos(x)).sin(x). After reduction to the same denominator (which is cos(x)) you obtain {cos

Cosh Squared or Cubed I cannot figure out how to square or cube the cosh function or the others i.e. csc, sin, cos, etc. Is there a way to do this....... if you want to square sin(3), press: ( sin 3)

x=ln(seca+tana) find coshx Sorry I do not like to work with secant and cosecant. sec(a)+tan(a)=(1+sin(a))/cos(a) ln(sec(a)+tan(a))= ln( (1+sin(a))/cos(a))=X 2*cosh(X)= e^(X)+e^(-X) ...

how to use the cosine,tangent etc functions of calculator fx-82ES plus Hello, 1.Set the correct angle unit required by your problem: degrees, radians, or grads. [SHIFT][MODE] [3:deg] or [4:Rad] 2. ...

How to get TI-94 to give me the Cos(20) = anumber not Cos(20) Hi I have aproblem with My TI-94 When I want like cos(x) the answer is cos(x) that is one and the fractions like I want 1/2 = 0.5 It ...

cos (A+B) Gemma, You won't need a calculator for this. The cosine of 'a' + 'b' is a semi-important math identity: 1. Cos(A+B) = cos(A)*cos(B) - sin(A)*sin(B) 2. Sin(A+B) = sin(A)*cos(B) + sin(B)*cos(A

why the cos of 90 is -0.44... ?? Why the cos of 90 is -0.44... ?? and the tan sin its'nt correct in the calculator what can i do ? The trigonometric function evaluations depend on the angle unit you ...

find the derivitive of sin(cosx) The 9750GII doesn't have symbolic capabilities so it can't give you a symbolic answer for this. It can evaluate it numerically at any point. The derivative of ...

derivatives sin(cosx) The derivative of sin(cos(x)) dx is cos(cos(x))-sin(x). Unfortunately the fx-9850GII doesn't do symbolic differentiation so you'll have to get this result some other way. I ...

cos theta 50 how i find cos theta 50 in my scientific calculator To calculate the Cosine of an angle, you first make sure that the angle unit on your calculator is set to the correct one (degree, or ...