Questions & Answers for: sin - Page 3

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

Please help me change: 5 sin X - 3 Cos X to C sin (X - @) @ = theta we can represent 5 sin X --3 cos X as 5.83 sin ( X - 30.96) if you want steps please leave a comment and don't forget to vote for me

I need to rewrite Y=5(sqrt2)sin(x)-5(sqrt2)cos(x) as Y=Asin(Bx-c) Use the fact that cos(pi/4)=sin(pi/4)= 1/square root(2). Trigonometric identity cos(a+b)=cos(a)cos(b)-sin(a)sin(b).

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

...Let n_r be the index of refraction of the second medium. The law of refraction states that n_i*sin(i)=n_r*sin(r) Assuming that the first transparent medium is air, we have n_i=1. Solving for n_r ...

how do you input arcsin Press 2nd then SIN then input the arcsine. sin^(-1)(x) raise sin to the -1 (inverse of sin)

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) ...

polar rectangular how to convert 40 sin4000T into polar form?? There is nothing to convert, because if T is a real number so is 40sin(4000T). 40sin(4000T)=40abs(sin(4000T))*sign(sin(4000T)) where abs(

how to use sin function How to access sin function Depending on calculator, enter angle then press sin key or press sin key then enter angle and press equal sign. Make sure angle units are the ones ...